Imports of package spanner

PathSynopsis
cloud.google.com/go/internal/versionPackage version contains version information for Google Cloud Client Libraries for Go, as reported in request headers.
github.com/golang/protobuf/protoPackage proto provides functionality for handling protocol buffer messages.
github.com/googleapis/gax-goPackage gax contains a set of modules which aid the development of APIs for clients and servers based on gRPC and Google API conventions.
golang.org/x/net/contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
google.golang.org/api/iterator
google.golang.org/api/option
google.golang.org/api/transport
google.golang.org/genproto/googleapis/spanner/v1Package spanner aliases all exported identifiers in package "cloud.google.com/go/spanner/apiv1/spannerpb".
google.golang.org/grpcPackage grpc implements an RPC system called gRPC.
google.golang.org/grpc/codesPackage codes defines the canonical error codes used by gRPC.
google.golang.org/grpc/metadataPackage metadata define the structure of the metadata supported by gRPC library.
mathPackage math provides basic constants and mathematical functions.
timePackage time provides functionality for measuring and displaying time.