diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go
new file mode 100644
index 0000000..bf2f703
--- /dev/null
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go
@@ -0,0 +1,55 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/api/annotations.proto
+
+package annotations
+
+import (
+	fmt "fmt"
+	math "math"
+
+	proto "github.com/golang/protobuf/proto"
+	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+var E_Http = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.MethodOptions)(nil),
+	ExtensionType: (*HttpRule)(nil),
+	Field:         72295728,
+	Name:          "google.api.http",
+	Tag:           "bytes,72295728,opt,name=http",
+	Filename:      "google/api/annotations.proto",
+}
+
+func init() {
+	proto.RegisterExtension(E_Http)
+}
+
+func init() { proto.RegisterFile("google/api/annotations.proto", fileDescriptor_c591c5aa9fb79aab) }
+
+var fileDescriptor_c591c5aa9fb79aab = []byte{
+	// 208 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x49, 0xcf, 0xcf, 0x4f,
+	0xcf, 0x49, 0xd5, 0x4f, 0x2c, 0xc8, 0xd4, 0x4f, 0xcc, 0xcb, 0xcb, 0x2f, 0x49, 0x2c, 0xc9, 0xcc,
+	0xcf, 0x2b, 0xd6, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x82, 0xc8, 0xea, 0x25, 0x16, 0x64,
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+	0xeb, 0xe5, 0x17, 0xa5, 0xeb, 0xa7, 0xa7, 0xe6, 0x81, 0xed, 0xd5, 0x87, 0x48, 0x25, 0x16, 0x64,
+	0x16, 0xa3, 0x7b, 0xda, 0x1a, 0x89, 0xbd, 0x88, 0x89, 0xc5, 0xdd, 0x31, 0xc0, 0x33, 0x89, 0x0d,
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+}
diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go
new file mode 100644
index 0000000..867fc0c
--- /dev/null
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go
@@ -0,0 +1,79 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/api/client.proto
+
+package annotations
+
+import (
+	fmt "fmt"
+	math "math"
+
+	proto "github.com/golang/protobuf/proto"
+	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+var E_MethodSignature = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.MethodOptions)(nil),
+	ExtensionType: ([]string)(nil),
+	Field:         1051,
+	Name:          "google.api.method_signature",
+	Tag:           "bytes,1051,rep,name=method_signature",
+	Filename:      "google/api/client.proto",
+}
+
+var E_DefaultHost = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.ServiceOptions)(nil),
+	ExtensionType: (*string)(nil),
+	Field:         1049,
+	Name:          "google.api.default_host",
+	Tag:           "bytes,1049,opt,name=default_host",
+	Filename:      "google/api/client.proto",
+}
+
+var E_OauthScopes = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.ServiceOptions)(nil),
+	ExtensionType: (*string)(nil),
+	Field:         1050,
+	Name:          "google.api.oauth_scopes",
+	Tag:           "bytes,1050,opt,name=oauth_scopes",
+	Filename:      "google/api/client.proto",
+}
+
+func init() {
+	proto.RegisterExtension(E_MethodSignature)
+	proto.RegisterExtension(E_DefaultHost)
+	proto.RegisterExtension(E_OauthScopes)
+}
+
+func init() { proto.RegisterFile("google/api/client.proto", fileDescriptor_78f2c6f7c3a942c1) }
+
+var fileDescriptor_78f2c6f7c3a942c1 = []byte{
+	// 262 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x84, 0x90, 0x3f, 0x4f, 0xc3, 0x30,
+	0x10, 0xc5, 0x55, 0x40, 0xa8, 0x75, 0x11, 0xa0, 0x2c, 0x20, 0x06, 0xc8, 0xd8, 0xc9, 0x1e, 0xd8,
+	0xca, 0xd4, 0x76, 0xe0, 0x8f, 0x84, 0x88, 0x9a, 0x8d, 0x25, 0x72, 0x9d, 0xab, 0x63, 0x29, 0xf5,
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+	0xf7, 0xfb, 0x9d, 0xf4, 0xd8, 0x85, 0x46, 0xd4, 0x2d, 0x08, 0xe9, 0x8c, 0x50, 0xad, 0x01, 0x4b,
+	0xdc, 0x79, 0x24, 0xcc, 0x58, 0x1f, 0x70, 0xe9, 0xcc, 0x55, 0x9e, 0x4a, 0x31, 0xd9, 0x74, 0x5b,
+	0x51, 0x43, 0x50, 0xde, 0x38, 0x42, 0xdf, 0xb7, 0xe7, 0x4f, 0xec, 0x7c, 0x07, 0xd4, 0x60, 0x5d,
+	0x05, 0xa3, 0xad, 0xa4, 0xce, 0x43, 0x76, 0xcd, 0x93, 0x62, 0xc0, 0xf8, 0x73, 0xac, 0xbc, 0x38,
+	0x32, 0x68, 0xc3, 0xe5, 0xe7, 0x38, 0x3f, 0x9c, 0x4d, 0xd6, 0x67, 0x3d, 0x58, 0x0e, 0xdc, 0x7c,
+	0xc5, 0x4e, 0x6a, 0xd8, 0xca, 0xae, 0xa5, 0xaa, 0xc1, 0x40, 0xd9, 0xcd, 0x1f, 0x4f, 0x09, 0xfe,
+	0xcd, 0x28, 0x18, 0x44, 0xef, 0xe3, 0x7c, 0x34, 0x9b, 0xac, 0xa7, 0x89, 0x7a, 0xc0, 0x40, 0x7b,
+	0x09, 0xca, 0x8e, 0x9a, 0x2a, 0x28, 0x74, 0x10, 0xfe, 0x97, 0x7c, 0x24, 0x49, 0xa4, 0xca, 0x08,
+	0x2d, 0x0d, 0x3b, 0x55, 0xb8, 0xe3, 0x3f, 0x4b, 0x2c, 0xa7, 0xab, 0xb8, 0x51, 0xb1, 0x97, 0x14,
+	0xa3, 0xd7, 0x45, 0x8a, 0x34, 0xb6, 0xd2, 0x6a, 0x8e, 0x5e, 0x0b, 0x0d, 0x36, 0xbe, 0x10, 0x7d,
+	0x24, 0x9d, 0x09, 0x71, 0x5c, 0x69, 0x2d, 0x92, 0x8c, 0xbf, 0xee, 0x7e, 0xdd, 0x5f, 0x07, 0x47,
+	0xf7, 0x8b, 0xe2, 0x71, 0x73, 0x1c, 0xa1, 0xdb, 0xef, 0x00, 0x00, 0x00, 0xff, 0xff, 0xcc, 0xc2,
+	0xcf, 0x71, 0x90, 0x01, 0x00, 0x00,
+}
diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/field_behavior.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/field_behavior.pb.go
new file mode 100644
index 0000000..31f87dd
--- /dev/null
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/field_behavior.pb.go
@@ -0,0 +1,122 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/api/field_behavior.proto
+
+package annotations
+
+import (
+	fmt "fmt"
+	math "math"
+
+	proto "github.com/golang/protobuf/proto"
+	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+// An indicator of the behavior of a given field (for example, that a field
+// is required in requests, or given as output but ignored as input).
+// This **does not** change the behavior in protocol buffers itself; it only
+// denotes the behavior and may affect how API tooling handles the field.
+//
+// Note: This enum **may** receive new values in the future.
+type FieldBehavior int32
+
+const (
+	// Conventional default for enums. Do not use this.
+	FieldBehavior_FIELD_BEHAVIOR_UNSPECIFIED FieldBehavior = 0
+	// Specifically denotes a field as optional.
+	// While all fields in protocol buffers are optional, this may be specified
+	// for emphasis if appropriate.
+	FieldBehavior_OPTIONAL FieldBehavior = 1
+	// Denotes a field as required.
+	// This indicates that the field **must** be provided as part of the request,
+	// and failure to do so will cause an error (usually `INVALID_ARGUMENT`).
+	FieldBehavior_REQUIRED FieldBehavior = 2
+	// Denotes a field as output only.
+	// This indicates that the field is provided in responses, but including the
+	// field in a request does nothing (the server *must* ignore it and
+	// *must not* throw an error as a result of the field's presence).
+	FieldBehavior_OUTPUT_ONLY FieldBehavior = 3
+	// Denotes a field as input only.
+	// This indicates that the field is provided in requests, and the
+	// corresponding field is not included in output.
+	FieldBehavior_INPUT_ONLY FieldBehavior = 4
+	// Denotes a field as immutable.
+	// This indicates that the field may be set once in a request to create a
+	// resource, but may not be changed thereafter.
+	FieldBehavior_IMMUTABLE FieldBehavior = 5
+)
+
+var FieldBehavior_name = map[int32]string{
+	0: "FIELD_BEHAVIOR_UNSPECIFIED",
+	1: "OPTIONAL",
+	2: "REQUIRED",
+	3: "OUTPUT_ONLY",
+	4: "INPUT_ONLY",
+	5: "IMMUTABLE",
+}
+
+var FieldBehavior_value = map[string]int32{
+	"FIELD_BEHAVIOR_UNSPECIFIED": 0,
+	"OPTIONAL":                   1,
+	"REQUIRED":                   2,
+	"OUTPUT_ONLY":                3,
+	"INPUT_ONLY":                 4,
+	"IMMUTABLE":                  5,
+}
+
+func (x FieldBehavior) String() string {
+	return proto.EnumName(FieldBehavior_name, int32(x))
+}
+
+func (FieldBehavior) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_4648f18fd5079967, []int{0}
+}
+
+var E_FieldBehavior = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.FieldOptions)(nil),
+	ExtensionType: ([]FieldBehavior)(nil),
+	Field:         1052,
+	Name:          "google.api.field_behavior",
+	Tag:           "varint,1052,rep,name=field_behavior,enum=google.api.FieldBehavior",
+	Filename:      "google/api/field_behavior.proto",
+}
+
+func init() {
+	proto.RegisterEnum("google.api.FieldBehavior", FieldBehavior_name, FieldBehavior_value)
+	proto.RegisterExtension(E_FieldBehavior)
+}
+
+func init() { proto.RegisterFile("google/api/field_behavior.proto", fileDescriptor_4648f18fd5079967) }
+
+var fileDescriptor_4648f18fd5079967 = []byte{
+	// 303 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x54, 0x90, 0x4f, 0x4f, 0xb3, 0x30,
+	0x1c, 0xc7, 0x9f, 0xfd, 0x79, 0xcc, 0xac, 0x0e, 0x49, 0x4f, 0xba, 0x44, 0xdd, 0xd1, 0x78, 0x28,
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+	0x7d, 0xfa, 0xeb, 0xe7, 0x5b, 0x70, 0x2a, 0x94, 0x12, 0xeb, 0xd4, 0xe1, 0x5a, 0x3a, 0x2b, 0x99,
+	0xae, 0x97, 0xc9, 0x3c, 0x7d, 0xe5, 0x1f, 0x52, 0xe5, 0x48, 0xe7, 0xaa, 0x54, 0x10, 0x6c, 0x00,
+	0xc4, 0xb5, 0x1c, 0x8d, 0x6b, 0xd8, 0x4c, 0xe6, 0xef, 0x2b, 0x67, 0x99, 0x16, 0x8b, 0x5c, 0xea,
+	0x72, 0x4b, 0x9f, 0x7f, 0x82, 0xe1, 0xb4, 0xda, 0xe2, 0xd5, 0x4b, 0xe0, 0x09, 0x18, 0x4d, 0x09,
+	0xf6, 0x27, 0x89, 0x87, 0xef, 0xdc, 0x47, 0x42, 0xc3, 0x24, 0x0e, 0x1e, 0x18, 0xbe, 0x21, 0x53,
+	0x82, 0x27, 0xf6, 0x3f, 0xb8, 0x0f, 0x06, 0x94, 0x45, 0x84, 0x06, 0xae, 0x6f, 0x77, 0xaa, 0x14,
+	0xe2, 0xfb, 0x98, 0x84, 0x78, 0x62, 0x77, 0xe1, 0x01, 0xd8, 0xa3, 0x71, 0xc4, 0xe2, 0x28, 0xa1,
+	0x81, 0xff, 0x64, 0xf7, 0xa0, 0x05, 0x00, 0x09, 0x7e, 0x73, 0x1f, 0x0e, 0xc1, 0x2e, 0x99, 0xcd,
+	0xe2, 0xc8, 0xf5, 0x7c, 0x6c, 0xff, 0xbf, 0x7a, 0x01, 0x56, 0xbb, 0x02, 0x3c, 0x46, 0xb5, 0xfd,
+	0xd6, 0x18, 0x19, 0x3b, 0xaa, 0x4b, 0xa9, 0xb2, 0xe2, 0xf0, 0x6b, 0x30, 0xee, 0x9d, 0x59, 0x17,
+	0x47, 0xe8, 0xaf, 0x23, 0x6a, 0xe9, 0x87, 0xc3, 0x55, 0x33, 0x7a, 0x1a, 0x58, 0x0b, 0xf5, 0xd6,
+	0xc0, 0x3d, 0xd8, 0xe2, 0x59, 0xf5, 0x0c, 0xeb, 0x3c, 0xbb, 0x35, 0x21, 0xd4, 0x9a, 0x67, 0x02,
+	0xa9, 0x5c, 0x38, 0x22, 0xcd, 0x8c, 0x84, 0xb3, 0x19, 0x71, 0x2d, 0x0b, 0xf3, 0xe9, 0x3c, 0xcb,
+	0x54, 0xc9, 0x8d, 0xcf, 0x75, 0xe3, 0xfc, 0xdd, 0xed, 0xdf, 0xba, 0x8c, 0xcc, 0x77, 0xcc, 0xa5,
+	0xcb, 0x9f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xfc, 0x94, 0x57, 0x94, 0xa8, 0x01, 0x00, 0x00,
+}
diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go
new file mode 100644
index 0000000..a638703
--- /dev/null
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go
@@ -0,0 +1,633 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/api/http.proto
+
+package annotations
+
+import (
+	fmt "fmt"
+	math "math"
+
+	proto "github.com/golang/protobuf/proto"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+// Defines the HTTP configuration for an API service. It contains a list of
+// [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
+// to one or more HTTP REST API methods.
+type Http struct {
+	// A list of HTTP configuration rules that apply to individual API methods.
+	//
+	// **NOTE:** All service configuration rules follow "last one wins" order.
+	Rules []*HttpRule `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
+	// When set to true, URL path parameters will be fully URI-decoded except in
+	// cases of single segment matches in reserved expansion, where "%2F" will be
+	// left encoded.
+	//
+	// The default behavior is to not decode RFC 6570 reserved characters in multi
+	// segment matches.
+	FullyDecodeReservedExpansion bool     `protobuf:"varint,2,opt,name=fully_decode_reserved_expansion,json=fullyDecodeReservedExpansion,proto3" json:"fully_decode_reserved_expansion,omitempty"`
+	XXX_NoUnkeyedLiteral         struct{} `json:"-"`
+	XXX_unrecognized             []byte   `json:"-"`
+	XXX_sizecache                int32    `json:"-"`
+}
+
+func (m *Http) Reset()         { *m = Http{} }
+func (m *Http) String() string { return proto.CompactTextString(m) }
+func (*Http) ProtoMessage()    {}
+func (*Http) Descriptor() ([]byte, []int) {
+	return fileDescriptor_ff9994be407cdcc9, []int{0}
+}
+
+func (m *Http) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Http.Unmarshal(m, b)
+}
+func (m *Http) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Http.Marshal(b, m, deterministic)
+}
+func (m *Http) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Http.Merge(m, src)
+}
+func (m *Http) XXX_Size() int {
+	return xxx_messageInfo_Http.Size(m)
+}
+func (m *Http) XXX_DiscardUnknown() {
+	xxx_messageInfo_Http.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Http proto.InternalMessageInfo
+
+func (m *Http) GetRules() []*HttpRule {
+	if m != nil {
+		return m.Rules
+	}
+	return nil
+}
+
+func (m *Http) GetFullyDecodeReservedExpansion() bool {
+	if m != nil {
+		return m.FullyDecodeReservedExpansion
+	}
+	return false
+}
+
+// # gRPC Transcoding
+//
+// gRPC Transcoding is a feature for mapping between a gRPC method and one or
+// more HTTP REST endpoints. It allows developers to build a single API service
+// that supports both gRPC APIs and REST APIs. Many systems, including [Google
+// APIs](https://github.com/googleapis/googleapis),
+// [Cloud Endpoints](https://cloud.google.com/endpoints), [gRPC
+// Gateway](https://github.com/grpc-ecosystem/grpc-gateway),
+// and [Envoy](https://github.com/envoyproxy/envoy) proxy support this feature
+// and use it for large scale production services.
+//
+// `HttpRule` defines the schema of the gRPC/REST mapping. The mapping specifies
+// how different portions of the gRPC request message are mapped to the URL
+// path, URL query parameters, and HTTP request body. It also controls how the
+// gRPC response message is mapped to the HTTP response body. `HttpRule` is
+// typically specified as an `google.api.http` annotation on the gRPC method.
+//
+// Each mapping specifies a URL path template and an HTTP method. The path
+// template may refer to one or more fields in the gRPC request message, as long
+// as each field is a non-repeated field with a primitive (non-message) type.
+// The path template controls how fields of the request message are mapped to
+// the URL path.
+//
+// Example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//             get: "/v1/{name=messages/*}"
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       string name = 1; // Mapped to URL path.
+//     }
+//     message Message {
+//       string text = 1; // The resource content.
+//     }
+//
+// This enables an HTTP REST to gRPC mapping as below:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456`  | `GetMessage(name: "messages/123456")`
+//
+// Any fields in the request message which are not bound by the path template
+// automatically become HTTP query parameters if there is no HTTP request body.
+// For example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//             get:"/v1/messages/{message_id}"
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       message SubMessage {
+//         string subfield = 1;
+//       }
+//       string message_id = 1; // Mapped to URL path.
+//       int64 revision = 2;    // Mapped to URL query parameter `revision`.
+//       SubMessage sub = 3;    // Mapped to URL query parameter `sub.subfield`.
+//     }
+//
+// This enables a HTTP JSON to RPC mapping as below:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456?revision=2&sub.subfield=foo` |
+// `GetMessage(message_id: "123456" revision: 2 sub: SubMessage(subfield:
+// "foo"))`
+//
+// Note that fields which are mapped to URL query parameters must have a
+// primitive type or a repeated primitive type or a non-repeated message type.
+// In the case of a repeated type, the parameter can be repeated in the URL
+// as `...?param=A&param=B`. In the case of a message type, each field of the
+// message is mapped to a separate parameter, such as
+// `...?foo.a=A&foo.b=B&foo.c=C`.
+//
+// For HTTP methods that allow a request body, the `body` field
+// specifies the mapping. Consider a REST update method on the
+// message resource collection:
+//
+//     service Messaging {
+//       rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//           patch: "/v1/messages/{message_id}"
+//           body: "message"
+//         };
+//       }
+//     }
+//     message UpdateMessageRequest {
+//       string message_id = 1; // mapped to the URL
+//       Message message = 2;   // mapped to the body
+//     }
+//
+// The following HTTP JSON to RPC mapping is enabled, where the
+// representation of the JSON in the request body is determined by
+// protos JSON encoding:
+//
+// HTTP | gRPC
+// -----|-----
+// `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id:
+// "123456" message { text: "Hi!" })`
+//
+// The special name `*` can be used in the body mapping to define that
+// every field not bound by the path template should be mapped to the
+// request body.  This enables the following alternative definition of
+// the update method:
+//
+//     service Messaging {
+//       rpc UpdateMessage(Message) returns (Message) {
+//         option (google.api.http) = {
+//           patch: "/v1/messages/{message_id}"
+//           body: "*"
+//         };
+//       }
+//     }
+//     message Message {
+//       string message_id = 1;
+//       string text = 2;
+//     }
+//
+//
+// The following HTTP JSON to RPC mapping is enabled:
+//
+// HTTP | gRPC
+// -----|-----
+// `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id:
+// "123456" text: "Hi!")`
+//
+// Note that when using `*` in the body mapping, it is not possible to
+// have HTTP parameters, as all fields not bound by the path end in
+// the body. This makes this option more rarely used in practice when
+// defining REST APIs. The common usage of `*` is in custom methods
+// which don't use the URL at all for transferring data.
+//
+// It is possible to define multiple HTTP methods for one RPC by using
+// the `additional_bindings` option. Example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//           get: "/v1/messages/{message_id}"
+//           additional_bindings {
+//             get: "/v1/users/{user_id}/messages/{message_id}"
+//           }
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       string message_id = 1;
+//       string user_id = 2;
+//     }
+//
+// This enables the following two alternative HTTP JSON to RPC mappings:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456` | `GetMessage(message_id: "123456")`
+// `GET /v1/users/me/messages/123456` | `GetMessage(user_id: "me" message_id:
+// "123456")`
+//
+// ## Rules for HTTP mapping
+//
+// 1. Leaf request fields (recursive expansion nested messages in the request
+//    message) are classified into three categories:
+//    - Fields referred by the path template. They are passed via the URL path.
+//    - Fields referred by the [HttpRule.body][google.api.HttpRule.body]. They are passed via the HTTP
+//      request body.
+//    - All other fields are passed via the URL query parameters, and the
+//      parameter name is the field path in the request message. A repeated
+//      field can be represented as multiple query parameters under the same
+//      name.
+//  2. If [HttpRule.body][google.api.HttpRule.body] is "*", there is no URL query parameter, all fields
+//     are passed via URL path and HTTP request body.
+//  3. If [HttpRule.body][google.api.HttpRule.body] is omitted, there is no HTTP request body, all
+//     fields are passed via URL path and URL query parameters.
+//
+// ### Path template syntax
+//
+//     Template = "/" Segments [ Verb ] ;
+//     Segments = Segment { "/" Segment } ;
+//     Segment  = "*" | "**" | LITERAL | Variable ;
+//     Variable = "{" FieldPath [ "=" Segments ] "}" ;
+//     FieldPath = IDENT { "." IDENT } ;
+//     Verb     = ":" LITERAL ;
+//
+// The syntax `*` matches a single URL path segment. The syntax `**` matches
+// zero or more URL path segments, which must be the last part of the URL path
+// except the `Verb`.
+//
+// The syntax `Variable` matches part of the URL path as specified by its
+// template. A variable template must not contain other variables. If a variable
+// matches a single path segment, its template may be omitted, e.g. `{var}`
+// is equivalent to `{var=*}`.
+//
+// The syntax `LITERAL` matches literal text in the URL path. If the `LITERAL`
+// contains any reserved character, such characters should be percent-encoded
+// before the matching.
+//
+// If a variable contains exactly one path segment, such as `"{var}"` or
+// `"{var=*}"`, when such a variable is expanded into a URL path on the client
+// side, all characters except `[-_.~0-9a-zA-Z]` are percent-encoded. The
+// server side does the reverse decoding. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{var}`.
+//
+// If a variable contains multiple path segments, such as `"{var=foo/*}"`
+// or `"{var=**}"`, when such a variable is expanded into a URL path on the
+// client side, all characters except `[-_.~/0-9a-zA-Z]` are percent-encoded.
+// The server side does the reverse decoding, except "%2F" and "%2f" are left
+// unchanged. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{+var}`.
+//
+// ## Using gRPC API Service Configuration
+//
+// gRPC API Service Configuration (service config) is a configuration language
+// for configuring a gRPC service to become a user-facing product. The
+// service config is simply the YAML representation of the `google.api.Service`
+// proto message.
+//
+// As an alternative to annotating your proto file, you can configure gRPC
+// transcoding in your service config YAML files. You do this by specifying a
+// `HttpRule` that maps the gRPC method to a REST endpoint, achieving the same
+// effect as the proto annotation. This can be particularly useful if you
+// have a proto that is reused in multiple services. Note that any transcoding
+// specified in the service config will override any matching transcoding
+// configuration in the proto.
+//
+// Example:
+//
+//     http:
+//       rules:
+//         # Selects a gRPC method and applies HttpRule to it.
+//         - selector: example.v1.Messaging.GetMessage
+//           get: /v1/messages/{message_id}/{sub.subfield}
+//
+// ## Special notes
+//
+// When gRPC Transcoding is used to map a gRPC to JSON REST endpoints, the
+// proto to JSON conversion must follow the [proto3
+// specification](https://developers.google.com/protocol-buffers/docs/proto3#json).
+//
+// While the single segment variable follows the semantics of
+// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
+// Expansion, the multi segment variable **does not** follow RFC 6570 Section
+// 3.2.3 Reserved Expansion. The reason is that the Reserved Expansion
+// does not expand special characters like `?` and `#`, which would lead
+// to invalid URLs. As the result, gRPC Transcoding uses a custom encoding
+// for multi segment variables.
+//
+// The path variables **must not** refer to any repeated or mapped field,
+// because client libraries are not capable of handling such variable expansion.
+//
+// The path variables **must not** capture the leading "/" character. The reason
+// is that the most common use case "{var}" does not capture the leading "/"
+// character. For consistency, all path variables must share the same behavior.
+//
+// Repeated message fields must not be mapped to URL query parameters, because
+// no client library can support such complicated mapping.
+//
+// If an API needs to use a JSON array for request or response body, it can map
+// the request or response body to a repeated field. However, some gRPC
+// Transcoding implementations may not support this feature.
+type HttpRule struct {
+	// Selects a method to which this rule applies.
+	//
+	// Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
+	Selector string `protobuf:"bytes,1,opt,name=selector,proto3" json:"selector,omitempty"`
+	// Determines the URL pattern is matched by this rules. This pattern can be
+	// used with any of the {get|put|post|delete|patch} methods. A custom method
+	// can be defined using the 'custom' field.
+	//
+	// Types that are valid to be assigned to Pattern:
+	//	*HttpRule_Get
+	//	*HttpRule_Put
+	//	*HttpRule_Post
+	//	*HttpRule_Delete
+	//	*HttpRule_Patch
+	//	*HttpRule_Custom
+	Pattern isHttpRule_Pattern `protobuf_oneof:"pattern"`
+	// The name of the request field whose value is mapped to the HTTP request
+	// body, or `*` for mapping all request fields not captured by the path
+	// pattern to the HTTP body, or omitted for not having any HTTP request body.
+	//
+	// NOTE: the referred field must be present at the top-level of the request
+	// message type.
+	Body string `protobuf:"bytes,7,opt,name=body,proto3" json:"body,omitempty"`
+	// Optional. The name of the response field whose value is mapped to the HTTP
+	// response body. When omitted, the entire response message will be used
+	// as the HTTP response body.
+	//
+	// NOTE: The referred field must be present at the top-level of the response
+	// message type.
+	ResponseBody string `protobuf:"bytes,12,opt,name=response_body,json=responseBody,proto3" json:"response_body,omitempty"`
+	// Additional HTTP bindings for the selector. Nested bindings must
+	// not contain an `additional_bindings` field themselves (that is,
+	// the nesting may only be one level deep).
+	AdditionalBindings   []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings,proto3" json:"additional_bindings,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}    `json:"-"`
+	XXX_unrecognized     []byte      `json:"-"`
+	XXX_sizecache        int32       `json:"-"`
+}
+
+func (m *HttpRule) Reset()         { *m = HttpRule{} }
+func (m *HttpRule) String() string { return proto.CompactTextString(m) }
+func (*HttpRule) ProtoMessage()    {}
+func (*HttpRule) Descriptor() ([]byte, []int) {
+	return fileDescriptor_ff9994be407cdcc9, []int{1}
+}
+
+func (m *HttpRule) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_HttpRule.Unmarshal(m, b)
+}
+func (m *HttpRule) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_HttpRule.Marshal(b, m, deterministic)
+}
+func (m *HttpRule) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_HttpRule.Merge(m, src)
+}
+func (m *HttpRule) XXX_Size() int {
+	return xxx_messageInfo_HttpRule.Size(m)
+}
+func (m *HttpRule) XXX_DiscardUnknown() {
+	xxx_messageInfo_HttpRule.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_HttpRule proto.InternalMessageInfo
+
+func (m *HttpRule) GetSelector() string {
+	if m != nil {
+		return m.Selector
+	}
+	return ""
+}
+
+type isHttpRule_Pattern interface {
+	isHttpRule_Pattern()
+}
+
+type HttpRule_Get struct {
+	Get string `protobuf:"bytes,2,opt,name=get,proto3,oneof"`
+}
+
+type HttpRule_Put struct {
+	Put string `protobuf:"bytes,3,opt,name=put,proto3,oneof"`
+}
+
+type HttpRule_Post struct {
+	Post string `protobuf:"bytes,4,opt,name=post,proto3,oneof"`
+}
+
+type HttpRule_Delete struct {
+	Delete string `protobuf:"bytes,5,opt,name=delete,proto3,oneof"`
+}
+
+type HttpRule_Patch struct {
+	Patch string `protobuf:"bytes,6,opt,name=patch,proto3,oneof"`
+}
+
+type HttpRule_Custom struct {
+	Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,proto3,oneof"`
+}
+
+func (*HttpRule_Get) isHttpRule_Pattern() {}
+
+func (*HttpRule_Put) isHttpRule_Pattern() {}
+
+func (*HttpRule_Post) isHttpRule_Pattern() {}
+
+func (*HttpRule_Delete) isHttpRule_Pattern() {}
+
+func (*HttpRule_Patch) isHttpRule_Pattern() {}
+
+func (*HttpRule_Custom) isHttpRule_Pattern() {}
+
+func (m *HttpRule) GetPattern() isHttpRule_Pattern {
+	if m != nil {
+		return m.Pattern
+	}
+	return nil
+}
+
+func (m *HttpRule) GetGet() string {
+	if x, ok := m.GetPattern().(*HttpRule_Get); ok {
+		return x.Get
+	}
+	return ""
+}
+
+func (m *HttpRule) GetPut() string {
+	if x, ok := m.GetPattern().(*HttpRule_Put); ok {
+		return x.Put
+	}
+	return ""
+}
+
+func (m *HttpRule) GetPost() string {
+	if x, ok := m.GetPattern().(*HttpRule_Post); ok {
+		return x.Post
+	}
+	return ""
+}
+
+func (m *HttpRule) GetDelete() string {
+	if x, ok := m.GetPattern().(*HttpRule_Delete); ok {
+		return x.Delete
+	}
+	return ""
+}
+
+func (m *HttpRule) GetPatch() string {
+	if x, ok := m.GetPattern().(*HttpRule_Patch); ok {
+		return x.Patch
+	}
+	return ""
+}
+
+func (m *HttpRule) GetCustom() *CustomHttpPattern {
+	if x, ok := m.GetPattern().(*HttpRule_Custom); ok {
+		return x.Custom
+	}
+	return nil
+}
+
+func (m *HttpRule) GetBody() string {
+	if m != nil {
+		return m.Body
+	}
+	return ""
+}
+
+func (m *HttpRule) GetResponseBody() string {
+	if m != nil {
+		return m.ResponseBody
+	}
+	return ""
+}
+
+func (m *HttpRule) GetAdditionalBindings() []*HttpRule {
+	if m != nil {
+		return m.AdditionalBindings
+	}
+	return nil
+}
+
+// XXX_OneofWrappers is for the internal use of the proto package.
+func (*HttpRule) XXX_OneofWrappers() []interface{} {
+	return []interface{}{
+		(*HttpRule_Get)(nil),
+		(*HttpRule_Put)(nil),
+		(*HttpRule_Post)(nil),
+		(*HttpRule_Delete)(nil),
+		(*HttpRule_Patch)(nil),
+		(*HttpRule_Custom)(nil),
+	}
+}
+
+// A custom pattern is used for defining custom HTTP verb.
+type CustomHttpPattern struct {
+	// The name of this custom HTTP verb.
+	Kind string `protobuf:"bytes,1,opt,name=kind,proto3" json:"kind,omitempty"`
+	// The path matched by this custom verb.
+	Path                 string   `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *CustomHttpPattern) Reset()         { *m = CustomHttpPattern{} }
+func (m *CustomHttpPattern) String() string { return proto.CompactTextString(m) }
+func (*CustomHttpPattern) ProtoMessage()    {}
+func (*CustomHttpPattern) Descriptor() ([]byte, []int) {
+	return fileDescriptor_ff9994be407cdcc9, []int{2}
+}
+
+func (m *CustomHttpPattern) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_CustomHttpPattern.Unmarshal(m, b)
+}
+func (m *CustomHttpPattern) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CustomHttpPattern.Marshal(b, m, deterministic)
+}
+func (m *CustomHttpPattern) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CustomHttpPattern.Merge(m, src)
+}
+func (m *CustomHttpPattern) XXX_Size() int {
+	return xxx_messageInfo_CustomHttpPattern.Size(m)
+}
+func (m *CustomHttpPattern) XXX_DiscardUnknown() {
+	xxx_messageInfo_CustomHttpPattern.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CustomHttpPattern proto.InternalMessageInfo
+
+func (m *CustomHttpPattern) GetKind() string {
+	if m != nil {
+		return m.Kind
+	}
+	return ""
+}
+
+func (m *CustomHttpPattern) GetPath() string {
+	if m != nil {
+		return m.Path
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*Http)(nil), "google.api.Http")
+	proto.RegisterType((*HttpRule)(nil), "google.api.HttpRule")
+	proto.RegisterType((*CustomHttpPattern)(nil), "google.api.CustomHttpPattern")
+}
+
+func init() { proto.RegisterFile("google/api/http.proto", fileDescriptor_ff9994be407cdcc9) }
+
+var fileDescriptor_ff9994be407cdcc9 = []byte{
+	// 419 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x7c, 0x92, 0xc1, 0x8e, 0xd3, 0x30,
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+	0x02, 0x00, 0x00,
+}
diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/resource.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/resource.pb.go
new file mode 100644
index 0000000..af057b9
--- /dev/null
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/resource.pb.go
@@ -0,0 +1,317 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/api/resource.proto
+
+package annotations
+
+import (
+	fmt "fmt"
+	math "math"
+
+	proto "github.com/golang/protobuf/proto"
+	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+// A description of the historical or future-looking state of the
+// resource pattern.
+type ResourceDescriptor_History int32
+
+const (
+	// The "unset" value.
+	ResourceDescriptor_HISTORY_UNSPECIFIED ResourceDescriptor_History = 0
+	// The resource originally had one pattern and launched as such, and
+	// additional patterns were added later.
+	ResourceDescriptor_ORIGINALLY_SINGLE_PATTERN ResourceDescriptor_History = 1
+	// The resource has one pattern, but the API owner expects to add more
+	// later. (This is the inverse of ORIGINALLY_SINGLE_PATTERN, and prevents
+	// that from being necessary once there are multiple patterns.)
+	ResourceDescriptor_FUTURE_MULTI_PATTERN ResourceDescriptor_History = 2
+)
+
+var ResourceDescriptor_History_name = map[int32]string{
+	0: "HISTORY_UNSPECIFIED",
+	1: "ORIGINALLY_SINGLE_PATTERN",
+	2: "FUTURE_MULTI_PATTERN",
+}
+
+var ResourceDescriptor_History_value = map[string]int32{
+	"HISTORY_UNSPECIFIED":       0,
+	"ORIGINALLY_SINGLE_PATTERN": 1,
+	"FUTURE_MULTI_PATTERN":      2,
+}
+
+func (x ResourceDescriptor_History) String() string {
+	return proto.EnumName(ResourceDescriptor_History_name, int32(x))
+}
+
+func (ResourceDescriptor_History) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_465e9122405d1bb5, []int{0, 0}
+}
+
+// A simple descriptor of a resource type.
+//
+// ResourceDescriptor annotates a resource message (either by means of a
+// protobuf annotation or use in the service config), and associates the
+// resource's schema, the resource type, and the pattern of the resource name.
+//
+// Example:
+//
+//   message Topic {
+//     // Indicates this message defines a resource schema.
+//     // Declares the resource type in the format of {service}/{kind}.
+//     // For Kubernetes resources, the format is {api group}/{kind}.
+//     option (google.api.resource) = {
+//       type: "pubsub.googleapis.com/Topic"
+//       pattern: "projects/{project}/topics/{topic}"
+//     };
+//   }
+//
+// Sometimes, resources have multiple patterns, typically because they can
+// live under multiple parents.
+//
+// Example:
+//
+//   message LogEntry {
+//     option (google.api.resource) = {
+//       type: "logging.googleapis.com/LogEntry"
+//       pattern: "projects/{project}/logs/{log}"
+//       pattern: "organizations/{organization}/logs/{log}"
+//       pattern: "folders/{folder}/logs/{log}"
+//       pattern: "billingAccounts/{billing_account}/logs/{log}"
+//     };
+//   }
+type ResourceDescriptor struct {
+	// The resource type. It must be in the format of
+	// {service_name}/{resource_type_kind}. The `resource_type_kind` must be
+	// singular and must not include version numbers.
+	//
+	// Example: `storage.googleapis.com/Bucket`
+	//
+	// The value of the resource_type_kind must follow the regular expression
+	// /[A-Za-z][a-zA-Z0-9]+/. It should start with an upper case character and
+	// should use PascalCase (UpperCamelCase). The maximum number of
+	// characters allowed for the `resource_type_kind` is 100.
+	Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
+	// Optional. The valid resource name pattern(s) for this resource type.
+	//
+	// Examples:
+	//   - "projects/{project}/topics/{topic}"
+	//   - "projects/{project}/knowledgeBases/{knowledge_base}"
+	//
+	// The components in braces correspond to the IDs for each resource in the
+	// hierarchy. It is expected that, if multiple patterns are provided,
+	// the same component name (e.g. "project") refers to IDs of the same
+	// type of resource.
+	Pattern []string `protobuf:"bytes,2,rep,name=pattern,proto3" json:"pattern,omitempty"`
+	// Optional. The field on the resource that designates the resource name
+	// field. If omitted, this is assumed to be "name".
+	NameField string `protobuf:"bytes,3,opt,name=name_field,json=nameField,proto3" json:"name_field,omitempty"`
+	// Optional. The historical or future-looking state of the resource pattern.
+	//
+	// Example:
+	//   // The InspectTemplate message originally only supported resource
+	//   // names with organization, and project was added later.
+	//   message InspectTemplate {
+	//     option (google.api.resource) = {
+	//       type: "dlp.googleapis.com/InspectTemplate"
+	//       pattern:
+	//       "organizations/{organization}/inspectTemplates/{inspect_template}"
+	//       pattern: "projects/{project}/inspectTemplates/{inspect_template}"
+	//       history: ORIGINALLY_SINGLE_PATTERN
+	//     };
+	//   }
+	History              ResourceDescriptor_History `protobuf:"varint,4,opt,name=history,proto3,enum=google.api.ResourceDescriptor_History" json:"history,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                   `json:"-"`
+	XXX_unrecognized     []byte                     `json:"-"`
+	XXX_sizecache        int32                      `json:"-"`
+}
+
+func (m *ResourceDescriptor) Reset()         { *m = ResourceDescriptor{} }
+func (m *ResourceDescriptor) String() string { return proto.CompactTextString(m) }
+func (*ResourceDescriptor) ProtoMessage()    {}
+func (*ResourceDescriptor) Descriptor() ([]byte, []int) {
+	return fileDescriptor_465e9122405d1bb5, []int{0}
+}
+
+func (m *ResourceDescriptor) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ResourceDescriptor.Unmarshal(m, b)
+}
+func (m *ResourceDescriptor) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ResourceDescriptor.Marshal(b, m, deterministic)
+}
+func (m *ResourceDescriptor) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ResourceDescriptor.Merge(m, src)
+}
+func (m *ResourceDescriptor) XXX_Size() int {
+	return xxx_messageInfo_ResourceDescriptor.Size(m)
+}
+func (m *ResourceDescriptor) XXX_DiscardUnknown() {
+	xxx_messageInfo_ResourceDescriptor.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ResourceDescriptor proto.InternalMessageInfo
+
+func (m *ResourceDescriptor) GetType() string {
+	if m != nil {
+		return m.Type
+	}
+	return ""
+}
+
+func (m *ResourceDescriptor) GetPattern() []string {
+	if m != nil {
+		return m.Pattern
+	}
+	return nil
+}
+
+func (m *ResourceDescriptor) GetNameField() string {
+	if m != nil {
+		return m.NameField
+	}
+	return ""
+}
+
+func (m *ResourceDescriptor) GetHistory() ResourceDescriptor_History {
+	if m != nil {
+		return m.History
+	}
+	return ResourceDescriptor_HISTORY_UNSPECIFIED
+}
+
+// Defines a proto annotation that describes a field that refers to a resource.
+type ResourceReference struct {
+	// The resource type that the annotated field references.
+	//
+	// Example:
+	//
+	//   message Subscription {
+	//     string topic = 2 [(google.api.resource_reference) = {
+	//       type = "pubsub.googleapis.com/Topic"
+	//     }];
+	//   }
+	Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
+	// The resource type of a child collection that the annotated field
+	// references. This is useful for `parent` fields where a resource has more
+	// than one possible type of parent.
+	//
+	// Example:
+	//
+	//   message ListLogEntriesRequest {
+	//     string parent = 1 [(google.api.resource_reference) = {
+	//       child_type: "logging.googleapis.com/LogEntry"
+	//     };
+	//   }
+	ChildType            string   `protobuf:"bytes,2,opt,name=child_type,json=childType,proto3" json:"child_type,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ResourceReference) Reset()         { *m = ResourceReference{} }
+func (m *ResourceReference) String() string { return proto.CompactTextString(m) }
+func (*ResourceReference) ProtoMessage()    {}
+func (*ResourceReference) Descriptor() ([]byte, []int) {
+	return fileDescriptor_465e9122405d1bb5, []int{1}
+}
+
+func (m *ResourceReference) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ResourceReference.Unmarshal(m, b)
+}
+func (m *ResourceReference) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ResourceReference.Marshal(b, m, deterministic)
+}
+func (m *ResourceReference) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ResourceReference.Merge(m, src)
+}
+func (m *ResourceReference) XXX_Size() int {
+	return xxx_messageInfo_ResourceReference.Size(m)
+}
+func (m *ResourceReference) XXX_DiscardUnknown() {
+	xxx_messageInfo_ResourceReference.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ResourceReference proto.InternalMessageInfo
+
+func (m *ResourceReference) GetType() string {
+	if m != nil {
+		return m.Type
+	}
+	return ""
+}
+
+func (m *ResourceReference) GetChildType() string {
+	if m != nil {
+		return m.ChildType
+	}
+	return ""
+}
+
+var E_ResourceReference = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.FieldOptions)(nil),
+	ExtensionType: (*ResourceReference)(nil),
+	Field:         1055,
+	Name:          "google.api.resource_reference",
+	Tag:           "bytes,1055,opt,name=resource_reference",
+	Filename:      "google/api/resource.proto",
+}
+
+var E_Resource = &proto.ExtensionDesc{
+	ExtendedType:  (*descriptor.MessageOptions)(nil),
+	ExtensionType: (*ResourceDescriptor)(nil),
+	Field:         1053,
+	Name:          "google.api.resource",
+	Tag:           "bytes,1053,opt,name=resource",
+	Filename:      "google/api/resource.proto",
+}
+
+func init() {
+	proto.RegisterEnum("google.api.ResourceDescriptor_History", ResourceDescriptor_History_name, ResourceDescriptor_History_value)
+	proto.RegisterType((*ResourceDescriptor)(nil), "google.api.ResourceDescriptor")
+	proto.RegisterType((*ResourceReference)(nil), "google.api.ResourceReference")
+	proto.RegisterExtension(E_ResourceReference)
+	proto.RegisterExtension(E_Resource)
+}
+
+func init() { proto.RegisterFile("google/api/resource.proto", fileDescriptor_465e9122405d1bb5) }
+
+var fileDescriptor_465e9122405d1bb5 = []byte{
+	// 430 bytes of a gzipped FileDescriptorProto
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+}