diff --git a/vendor/github.com/jhump/protoreflect/grpcreflect/client.go b/vendor/github.com/jhump/protoreflect/grpcreflect/client.go
new file mode 100644
index 0000000..3fca3eb
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/grpcreflect/client.go
@@ -0,0 +1,666 @@
+package grpcreflect
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"reflect"
+	"runtime"
+	"sync"
+
+	"github.com/golang/protobuf/proto"
+	dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/codes"
+	rpb "google.golang.org/grpc/reflection/grpc_reflection_v1alpha"
+	"google.golang.org/grpc/status"
+
+	"github.com/jhump/protoreflect/desc"
+	"github.com/jhump/protoreflect/internal"
+)
+
+// elementNotFoundError is the error returned by reflective operations where the
+// server does not recognize a given file name, symbol name, or extension.
+type elementNotFoundError struct {
+	name    string
+	kind    elementKind
+	symType symbolType // only used when kind == elementKindSymbol
+	tag     int32      // only used when kind == elementKindExtension
+
+	// only errors with a kind of elementKindFile will have a cause, which means
+	// the named file count not be resolved because of a dependency that could
+	// not be found where cause describes the missing dependency
+	cause *elementNotFoundError
+}
+
+type elementKind int
+
+const (
+	elementKindSymbol elementKind = iota
+	elementKindFile
+	elementKindExtension
+)
+
+type symbolType string
+
+const (
+	symbolTypeService = "Service"
+	symbolTypeMessage = "Message"
+	symbolTypeEnum    = "Enum"
+	symbolTypeUnknown = "Symbol"
+)
+
+func symbolNotFound(symbol string, symType symbolType, cause *elementNotFoundError) error {
+	return &elementNotFoundError{name: symbol, symType: symType, kind: elementKindSymbol, cause: cause}
+}
+
+func extensionNotFound(extendee string, tag int32, cause *elementNotFoundError) error {
+	return &elementNotFoundError{name: extendee, tag: tag, kind: elementKindExtension, cause: cause}
+}
+
+func fileNotFound(file string, cause *elementNotFoundError) error {
+	return &elementNotFoundError{name: file, kind: elementKindFile, cause: cause}
+}
+
+func (e *elementNotFoundError) Error() string {
+	first := true
+	var b bytes.Buffer
+	for ; e != nil; e = e.cause {
+		if first {
+			first = false
+		} else {
+			fmt.Fprint(&b, "\ncaused by: ")
+		}
+		switch e.kind {
+		case elementKindSymbol:
+			fmt.Fprintf(&b, "%s not found: %s", e.symType, e.name)
+		case elementKindExtension:
+			fmt.Fprintf(&b, "Extension not found: tag %d for %s", e.tag, e.name)
+		default:
+			fmt.Fprintf(&b, "File not found: %s", e.name)
+		}
+	}
+	return b.String()
+}
+
+// IsElementNotFoundError determines if the given error indicates that a file
+// name, symbol name, or extension field was could not be found by the server.
+func IsElementNotFoundError(err error) bool {
+	_, ok := err.(*elementNotFoundError)
+	return ok
+}
+
+// ProtocolError is an error returned when the server sends a response of the
+// wrong type.
+type ProtocolError struct {
+	missingType reflect.Type
+}
+
+func (p ProtocolError) Error() string {
+	return fmt.Sprintf("Protocol error: response was missing %v", p.missingType)
+}
+
+type extDesc struct {
+	extendedMessageName string
+	extensionNumber     int32
+}
+
+// Client is a client connection to a server for performing reflection calls
+// and resolving remote symbols.
+type Client struct {
+	ctx  context.Context
+	stub rpb.ServerReflectionClient
+
+	connMu sync.Mutex
+	cancel context.CancelFunc
+	stream rpb.ServerReflection_ServerReflectionInfoClient
+
+	cacheMu          sync.RWMutex
+	protosByName     map[string]*dpb.FileDescriptorProto
+	filesByName      map[string]*desc.FileDescriptor
+	filesBySymbol    map[string]*desc.FileDescriptor
+	filesByExtension map[extDesc]*desc.FileDescriptor
+}
+
+// NewClient creates a new Client with the given root context and using the
+// given RPC stub for talking to the server.
+func NewClient(ctx context.Context, stub rpb.ServerReflectionClient) *Client {
+	cr := &Client{
+		ctx:              ctx,
+		stub:             stub,
+		protosByName:     map[string]*dpb.FileDescriptorProto{},
+		filesByName:      map[string]*desc.FileDescriptor{},
+		filesBySymbol:    map[string]*desc.FileDescriptor{},
+		filesByExtension: map[extDesc]*desc.FileDescriptor{},
+	}
+	// don't leak a grpc stream
+	runtime.SetFinalizer(cr, (*Client).Reset)
+	return cr
+}
+
+// FileByFilename asks the server for a file descriptor for the proto file with
+// the given name.
+func (cr *Client) FileByFilename(filename string) (*desc.FileDescriptor, error) {
+	// hit the cache first
+	cr.cacheMu.RLock()
+	if fd, ok := cr.filesByName[filename]; ok {
+		cr.cacheMu.RUnlock()
+		return fd, nil
+	}
+	fdp, ok := cr.protosByName[filename]
+	cr.cacheMu.RUnlock()
+	// not there? see if we've downloaded the proto
+	if ok {
+		return cr.descriptorFromProto(fdp)
+	}
+
+	req := &rpb.ServerReflectionRequest{
+		MessageRequest: &rpb.ServerReflectionRequest_FileByFilename{
+			FileByFilename: filename,
+		},
+	}
+	fd, err := cr.getAndCacheFileDescriptors(req, filename, "")
+	if isNotFound(err) {
+		// file not found? see if we can look up via alternate name
+		if alternate, ok := internal.StdFileAliases[filename]; ok {
+			req := &rpb.ServerReflectionRequest{
+				MessageRequest: &rpb.ServerReflectionRequest_FileByFilename{
+					FileByFilename: alternate,
+				},
+			}
+			fd, err = cr.getAndCacheFileDescriptors(req, alternate, filename)
+			if isNotFound(err) {
+				err = fileNotFound(filename, nil)
+			}
+		} else {
+			err = fileNotFound(filename, nil)
+		}
+	} else if e, ok := err.(*elementNotFoundError); ok {
+		err = fileNotFound(filename, e)
+	}
+	return fd, err
+}
+
+// FileContainingSymbol asks the server for a file descriptor for the proto file
+// that declares the given fully-qualified symbol.
+func (cr *Client) FileContainingSymbol(symbol string) (*desc.FileDescriptor, error) {
+	// hit the cache first
+	cr.cacheMu.RLock()
+	fd, ok := cr.filesBySymbol[symbol]
+	cr.cacheMu.RUnlock()
+	if ok {
+		return fd, nil
+	}
+
+	req := &rpb.ServerReflectionRequest{
+		MessageRequest: &rpb.ServerReflectionRequest_FileContainingSymbol{
+			FileContainingSymbol: symbol,
+		},
+	}
+	fd, err := cr.getAndCacheFileDescriptors(req, "", "")
+	if isNotFound(err) {
+		err = symbolNotFound(symbol, symbolTypeUnknown, nil)
+	} else if e, ok := err.(*elementNotFoundError); ok {
+		err = symbolNotFound(symbol, symbolTypeUnknown, e)
+	}
+	return fd, err
+}
+
+// FileContainingExtension asks the server for a file descriptor for the proto
+// file that declares an extension with the given number for the given
+// fully-qualified message name.
+func (cr *Client) FileContainingExtension(extendedMessageName string, extensionNumber int32) (*desc.FileDescriptor, error) {
+	// hit the cache first
+	cr.cacheMu.RLock()
+	fd, ok := cr.filesByExtension[extDesc{extendedMessageName, extensionNumber}]
+	cr.cacheMu.RUnlock()
+	if ok {
+		return fd, nil
+	}
+
+	req := &rpb.ServerReflectionRequest{
+		MessageRequest: &rpb.ServerReflectionRequest_FileContainingExtension{
+			FileContainingExtension: &rpb.ExtensionRequest{
+				ContainingType:  extendedMessageName,
+				ExtensionNumber: extensionNumber,
+			},
+		},
+	}
+	fd, err := cr.getAndCacheFileDescriptors(req, "", "")
+	if isNotFound(err) {
+		err = extensionNotFound(extendedMessageName, extensionNumber, nil)
+	} else if e, ok := err.(*elementNotFoundError); ok {
+		err = extensionNotFound(extendedMessageName, extensionNumber, e)
+	}
+	return fd, err
+}
+
+func (cr *Client) getAndCacheFileDescriptors(req *rpb.ServerReflectionRequest, expectedName, alias string) (*desc.FileDescriptor, error) {
+	resp, err := cr.send(req)
+	if err != nil {
+		return nil, err
+	}
+
+	fdResp := resp.GetFileDescriptorResponse()
+	if fdResp == nil {
+		return nil, &ProtocolError{reflect.TypeOf(fdResp).Elem()}
+	}
+
+	// Response can contain the result file descriptor, but also its transitive
+	// deps. Furthermore, protocol states that subsequent requests do not need
+	// to send transitive deps that have been sent in prior responses. So we
+	// need to cache all file descriptors and then return the first one (which
+	// should be the answer). If we're looking for a file by name, we can be
+	// smarter and make sure to grab one by name instead of just grabbing the
+	// first one.
+	var firstFd *dpb.FileDescriptorProto
+	for _, fdBytes := range fdResp.FileDescriptorProto {
+		fd := &dpb.FileDescriptorProto{}
+		if err = proto.Unmarshal(fdBytes, fd); err != nil {
+			return nil, err
+		}
+
+		if expectedName != "" && alias != "" && expectedName != alias && fd.GetName() == expectedName {
+			// we found a file was aliased, so we need to update the proto to reflect that
+			fd.Name = proto.String(alias)
+		}
+
+		cr.cacheMu.Lock()
+		// see if this file was created and cached concurrently
+		if firstFd == nil {
+			if d, ok := cr.filesByName[fd.GetName()]; ok {
+				cr.cacheMu.Unlock()
+				return d, nil
+			}
+		}
+		// store in cache of raw descriptor protos, but don't overwrite existing protos
+		if existingFd, ok := cr.protosByName[fd.GetName()]; ok {
+			fd = existingFd
+		} else {
+			cr.protosByName[fd.GetName()] = fd
+		}
+		cr.cacheMu.Unlock()
+		if firstFd == nil {
+			firstFd = fd
+		}
+	}
+	if firstFd == nil {
+		return nil, &ProtocolError{reflect.TypeOf(firstFd).Elem()}
+	}
+
+	return cr.descriptorFromProto(firstFd)
+}
+
+func (cr *Client) descriptorFromProto(fd *dpb.FileDescriptorProto) (*desc.FileDescriptor, error) {
+	deps := make([]*desc.FileDescriptor, len(fd.GetDependency()))
+	for i, depName := range fd.GetDependency() {
+		if dep, err := cr.FileByFilename(depName); err != nil {
+			return nil, err
+		} else {
+			deps[i] = dep
+		}
+	}
+	d, err := desc.CreateFileDescriptor(fd, deps...)
+	if err != nil {
+		return nil, err
+	}
+	d = cr.cacheFile(d)
+	return d, nil
+}
+
+func (cr *Client) cacheFile(fd *desc.FileDescriptor) *desc.FileDescriptor {
+	cr.cacheMu.Lock()
+	defer cr.cacheMu.Unlock()
+
+	// cache file descriptor by name, but don't overwrite existing entry
+	// (existing entry could come from concurrent caller)
+	if existingFd, ok := cr.filesByName[fd.GetName()]; ok {
+		return existingFd
+	}
+	cr.filesByName[fd.GetName()] = fd
+
+	// also cache by symbols and extensions
+	for _, m := range fd.GetMessageTypes() {
+		cr.cacheMessageLocked(fd, m)
+	}
+	for _, e := range fd.GetEnumTypes() {
+		cr.filesBySymbol[e.GetFullyQualifiedName()] = fd
+		for _, v := range e.GetValues() {
+			cr.filesBySymbol[v.GetFullyQualifiedName()] = fd
+		}
+	}
+	for _, e := range fd.GetExtensions() {
+		cr.filesBySymbol[e.GetFullyQualifiedName()] = fd
+		cr.filesByExtension[extDesc{e.GetOwner().GetFullyQualifiedName(), e.GetNumber()}] = fd
+	}
+	for _, s := range fd.GetServices() {
+		cr.filesBySymbol[s.GetFullyQualifiedName()] = fd
+		for _, m := range s.GetMethods() {
+			cr.filesBySymbol[m.GetFullyQualifiedName()] = fd
+		}
+	}
+
+	return fd
+}
+
+func (cr *Client) cacheMessageLocked(fd *desc.FileDescriptor, md *desc.MessageDescriptor) {
+	cr.filesBySymbol[md.GetFullyQualifiedName()] = fd
+	for _, f := range md.GetFields() {
+		cr.filesBySymbol[f.GetFullyQualifiedName()] = fd
+	}
+	for _, o := range md.GetOneOfs() {
+		cr.filesBySymbol[o.GetFullyQualifiedName()] = fd
+	}
+	for _, e := range md.GetNestedEnumTypes() {
+		cr.filesBySymbol[e.GetFullyQualifiedName()] = fd
+		for _, v := range e.GetValues() {
+			cr.filesBySymbol[v.GetFullyQualifiedName()] = fd
+		}
+	}
+	for _, e := range md.GetNestedExtensions() {
+		cr.filesBySymbol[e.GetFullyQualifiedName()] = fd
+		cr.filesByExtension[extDesc{e.GetOwner().GetFullyQualifiedName(), e.GetNumber()}] = fd
+	}
+	for _, m := range md.GetNestedMessageTypes() {
+		cr.cacheMessageLocked(fd, m) // recurse
+	}
+}
+
+// AllExtensionNumbersForType asks the server for all known extension numbers
+// for the given fully-qualified message name.
+func (cr *Client) AllExtensionNumbersForType(extendedMessageName string) ([]int32, error) {
+	req := &rpb.ServerReflectionRequest{
+		MessageRequest: &rpb.ServerReflectionRequest_AllExtensionNumbersOfType{
+			AllExtensionNumbersOfType: extendedMessageName,
+		},
+	}
+	resp, err := cr.send(req)
+	if err != nil {
+		if isNotFound(err) {
+			return nil, symbolNotFound(extendedMessageName, symbolTypeMessage, nil)
+		}
+		return nil, err
+	}
+
+	extResp := resp.GetAllExtensionNumbersResponse()
+	if extResp == nil {
+		return nil, &ProtocolError{reflect.TypeOf(extResp).Elem()}
+	}
+	return extResp.ExtensionNumber, nil
+}
+
+// ListServices asks the server for the fully-qualified names of all exposed
+// services.
+func (cr *Client) ListServices() ([]string, error) {
+	req := &rpb.ServerReflectionRequest{
+		MessageRequest: &rpb.ServerReflectionRequest_ListServices{
+			// proto doesn't indicate any purpose for this value and server impl
+			// doesn't actually use it...
+			ListServices: "*",
+		},
+	}
+	resp, err := cr.send(req)
+	if err != nil {
+		return nil, err
+	}
+
+	listResp := resp.GetListServicesResponse()
+	if listResp == nil {
+		return nil, &ProtocolError{reflect.TypeOf(listResp).Elem()}
+	}
+	serviceNames := make([]string, len(listResp.Service))
+	for i, s := range listResp.Service {
+		serviceNames[i] = s.Name
+	}
+	return serviceNames, nil
+}
+
+func (cr *Client) send(req *rpb.ServerReflectionRequest) (*rpb.ServerReflectionResponse, error) {
+	// we allow one immediate retry, in case we have a stale stream
+	// (e.g. closed by server)
+	resp, err := cr.doSend(true, req)
+	if err != nil {
+		return nil, err
+	}
+
+	// convert error response messages into errors
+	errResp := resp.GetErrorResponse()
+	if errResp != nil {
+		return nil, status.Errorf(codes.Code(errResp.ErrorCode), "%s", errResp.ErrorMessage)
+	}
+
+	return resp, nil
+}
+
+func isNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	s, ok := status.FromError(err)
+	return ok && s.Code() == codes.NotFound
+}
+
+func (cr *Client) doSend(retry bool, req *rpb.ServerReflectionRequest) (*rpb.ServerReflectionResponse, error) {
+	// TODO: Streams are thread-safe, so we shouldn't need to lock. But without locking, we'll need more machinery
+	// (goroutines and channels) to ensure that responses are correctly correlated with their requests and thus
+	// delivered in correct oder.
+	cr.connMu.Lock()
+	defer cr.connMu.Unlock()
+	return cr.doSendLocked(retry, req)
+}
+
+func (cr *Client) doSendLocked(retry bool, req *rpb.ServerReflectionRequest) (*rpb.ServerReflectionResponse, error) {
+	if err := cr.initStreamLocked(); err != nil {
+		return nil, err
+	}
+
+	if err := cr.stream.Send(req); err != nil {
+		if err == io.EOF {
+			// if send returns EOF, must call Recv to get real underlying error
+			_, err = cr.stream.Recv()
+		}
+		cr.resetLocked()
+		if retry {
+			return cr.doSendLocked(false, req)
+		}
+		return nil, err
+	}
+
+	if resp, err := cr.stream.Recv(); err != nil {
+		cr.resetLocked()
+		if retry {
+			return cr.doSendLocked(false, req)
+		}
+		return nil, err
+	} else {
+		return resp, nil
+	}
+}
+
+func (cr *Client) initStreamLocked() error {
+	if cr.stream != nil {
+		return nil
+	}
+	var newCtx context.Context
+	newCtx, cr.cancel = context.WithCancel(cr.ctx)
+	var err error
+	cr.stream, err = cr.stub.ServerReflectionInfo(newCtx)
+	return err
+}
+
+// Reset ensures that any active stream with the server is closed, releasing any
+// resources.
+func (cr *Client) Reset() {
+	cr.connMu.Lock()
+	defer cr.connMu.Unlock()
+	cr.resetLocked()
+}
+
+func (cr *Client) resetLocked() {
+	if cr.stream != nil {
+		cr.stream.CloseSend()
+		for {
+			// drain the stream, this covers io.EOF too
+			if _, err := cr.stream.Recv(); err != nil {
+				break
+			}
+		}
+		cr.stream = nil
+	}
+	if cr.cancel != nil {
+		cr.cancel()
+		cr.cancel = nil
+	}
+}
+
+// ResolveService asks the server to resolve the given fully-qualified service
+// name into a service descriptor.
+func (cr *Client) ResolveService(serviceName string) (*desc.ServiceDescriptor, error) {
+	file, err := cr.FileContainingSymbol(serviceName)
+	if err != nil {
+		return nil, setSymbolType(err, serviceName, symbolTypeService)
+	}
+	d := file.FindSymbol(serviceName)
+	if d == nil {
+		return nil, symbolNotFound(serviceName, symbolTypeService, nil)
+	}
+	if s, ok := d.(*desc.ServiceDescriptor); ok {
+		return s, nil
+	} else {
+		return nil, symbolNotFound(serviceName, symbolTypeService, nil)
+	}
+}
+
+// ResolveMessage asks the server to resolve the given fully-qualified message
+// name into a message descriptor.
+func (cr *Client) ResolveMessage(messageName string) (*desc.MessageDescriptor, error) {
+	file, err := cr.FileContainingSymbol(messageName)
+	if err != nil {
+		return nil, setSymbolType(err, messageName, symbolTypeMessage)
+	}
+	d := file.FindSymbol(messageName)
+	if d == nil {
+		return nil, symbolNotFound(messageName, symbolTypeMessage, nil)
+	}
+	if s, ok := d.(*desc.MessageDescriptor); ok {
+		return s, nil
+	} else {
+		return nil, symbolNotFound(messageName, symbolTypeMessage, nil)
+	}
+}
+
+// ResolveEnum asks the server to resolve the given fully-qualified enum name
+// into an enum descriptor.
+func (cr *Client) ResolveEnum(enumName string) (*desc.EnumDescriptor, error) {
+	file, err := cr.FileContainingSymbol(enumName)
+	if err != nil {
+		return nil, setSymbolType(err, enumName, symbolTypeEnum)
+	}
+	d := file.FindSymbol(enumName)
+	if d == nil {
+		return nil, symbolNotFound(enumName, symbolTypeEnum, nil)
+	}
+	if s, ok := d.(*desc.EnumDescriptor); ok {
+		return s, nil
+	} else {
+		return nil, symbolNotFound(enumName, symbolTypeEnum, nil)
+	}
+}
+
+func setSymbolType(err error, name string, symType symbolType) error {
+	if e, ok := err.(*elementNotFoundError); ok {
+		if e.kind == elementKindSymbol && e.name == name && e.symType == symbolTypeUnknown {
+			e.symType = symType
+		}
+	}
+	return err
+}
+
+// ResolveEnumValues asks the server to resolve the given fully-qualified enum
+// name into a map of names to numbers that represents the enum's values.
+func (cr *Client) ResolveEnumValues(enumName string) (map[string]int32, error) {
+	enumDesc, err := cr.ResolveEnum(enumName)
+	if err != nil {
+		return nil, err
+	}
+	vals := map[string]int32{}
+	for _, valDesc := range enumDesc.GetValues() {
+		vals[valDesc.GetName()] = valDesc.GetNumber()
+	}
+	return vals, nil
+}
+
+// ResolveExtension asks the server to resolve the given extension number and
+// fully-qualified message name into a field descriptor.
+func (cr *Client) ResolveExtension(extendedType string, extensionNumber int32) (*desc.FieldDescriptor, error) {
+	file, err := cr.FileContainingExtension(extendedType, extensionNumber)
+	if err != nil {
+		return nil, err
+	}
+	d := findExtension(extendedType, extensionNumber, fileDescriptorExtensions{file})
+	if d == nil {
+		return nil, extensionNotFound(extendedType, extensionNumber, nil)
+	} else {
+		return d, nil
+	}
+}
+
+func findExtension(extendedType string, extensionNumber int32, scope extensionScope) *desc.FieldDescriptor {
+	// search extensions in this scope
+	for _, ext := range scope.extensions() {
+		if ext.GetNumber() == extensionNumber && ext.GetOwner().GetFullyQualifiedName() == extendedType {
+			return ext
+		}
+	}
+
+	// if not found, search nested scopes
+	for _, nested := range scope.nestedScopes() {
+		ext := findExtension(extendedType, extensionNumber, nested)
+		if ext != nil {
+			return ext
+		}
+	}
+
+	return nil
+}
+
+type extensionScope interface {
+	extensions() []*desc.FieldDescriptor
+	nestedScopes() []extensionScope
+}
+
+// fileDescriptorExtensions implements extensionHolder interface on top of
+// FileDescriptorProto
+type fileDescriptorExtensions struct {
+	proto *desc.FileDescriptor
+}
+
+func (fde fileDescriptorExtensions) extensions() []*desc.FieldDescriptor {
+	return fde.proto.GetExtensions()
+}
+
+func (fde fileDescriptorExtensions) nestedScopes() []extensionScope {
+	scopes := make([]extensionScope, len(fde.proto.GetMessageTypes()))
+	for i, m := range fde.proto.GetMessageTypes() {
+		scopes[i] = msgDescriptorExtensions{m}
+	}
+	return scopes
+}
+
+// msgDescriptorExtensions implements extensionHolder interface on top of
+// DescriptorProto
+type msgDescriptorExtensions struct {
+	proto *desc.MessageDescriptor
+}
+
+func (mde msgDescriptorExtensions) extensions() []*desc.FieldDescriptor {
+	return mde.proto.GetNestedExtensions()
+}
+
+func (mde msgDescriptorExtensions) nestedScopes() []extensionScope {
+	scopes := make([]extensionScope, len(mde.proto.GetNestedMessageTypes()))
+	for i, m := range mde.proto.GetNestedMessageTypes() {
+		scopes[i] = msgDescriptorExtensions{m}
+	}
+	return scopes
+}
diff --git a/vendor/github.com/jhump/protoreflect/grpcreflect/doc.go b/vendor/github.com/jhump/protoreflect/grpcreflect/doc.go
new file mode 100644
index 0000000..ec7bd02
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/grpcreflect/doc.go
@@ -0,0 +1,10 @@
+// Package grpcreflect provides GRPC-specific extensions to protobuf reflection.
+// This includes a way to access rich service descriptors for all services that
+// a GRPC server exports.
+//
+// Also included is an easy-to-use client for the GRPC reflection service
+// (https://goo.gl/2ILAHf). This client makes it easy to ask a server (that
+// supports the reflection service) for metadata on its exported services, which
+// could be used to construct a dynamic client. (See the grpcdynamic package in
+// this same repo for more on that.)
+package grpcreflect
diff --git a/vendor/github.com/jhump/protoreflect/grpcreflect/server.go b/vendor/github.com/jhump/protoreflect/grpcreflect/server.go
new file mode 100644
index 0000000..c9ef619
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/grpcreflect/server.go
@@ -0,0 +1,61 @@
+package grpcreflect
+
+import (
+	"fmt"
+
+	"google.golang.org/grpc"
+
+	"github.com/jhump/protoreflect/desc"
+)
+
+// LoadServiceDescriptors loads the service descriptors for all services exposed by the
+// given GRPC server.
+func LoadServiceDescriptors(s *grpc.Server) (map[string]*desc.ServiceDescriptor, error) {
+	descs := map[string]*desc.ServiceDescriptor{}
+	for name, info := range s.GetServiceInfo() {
+		file, ok := info.Metadata.(string)
+		if !ok {
+			return nil, fmt.Errorf("service %q has unexpected metadata: expecting a string; got %v", name, info.Metadata)
+		}
+		fd, err := desc.LoadFileDescriptor(file)
+		if err != nil {
+			return nil, err
+		}
+		d := fd.FindSymbol(name)
+		if d == nil {
+			return nil, fmt.Errorf("file descriptor for %q has no element named %q", file, name)
+		}
+		sd, ok := d.(*desc.ServiceDescriptor)
+		if !ok {
+			return nil, fmt.Errorf("file descriptor for %q has incorrect element named %q: expecting a service descriptor; got %v", file, name, d)
+		}
+		descs[name] = sd
+	}
+	return descs, nil
+}
+
+// LoadServiceDescriptor loads a rich descriptor for a given service description
+// generated by protoc-gen-go. Generated code contains an unexported symbol with
+// a name like "_<Service>_serviceDesc" which is the service's description. It
+// is used internally to register a service implementation with a GRPC server.
+// But it can also be used by this package to retrieve the rich descriptor for
+// the service.
+func LoadServiceDescriptor(svc *grpc.ServiceDesc) (*desc.ServiceDescriptor, error) {
+	file, ok := svc.Metadata.(string)
+	if !ok {
+		return nil, fmt.Errorf("service %q has unexpected metadata: expecting a string; got %v", svc.ServiceName, svc.Metadata)
+	}
+	fd, err := desc.LoadFileDescriptor(file)
+	if err != nil {
+		return nil, err
+	}
+	d := fd.FindSymbol(svc.ServiceName)
+	if d == nil {
+		return nil, fmt.Errorf("file descriptor for %q has no element named %q", file, svc.ServiceName)
+	}
+	sd, ok := d.(*desc.ServiceDescriptor)
+	if !ok {
+		return nil, fmt.Errorf("file descriptor for %q has incorrect element named %q: expecting a service descriptor; got %v", file, svc.ServiceName, d)
+	}
+	return sd, nil
+}