| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/googleapis/gax-go | Package 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/context | Package 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/option | |
| google.golang.org/api/transport | |
| google.golang.org/genproto/googleapis/cloud/vision/v1 | Package vision aliases all exported identifiers in package "cloud.google.com/go/vision/v2/apiv1/visionpb". |
| google.golang.org/grpc | Package grpc implements an RPC system called gRPC. |
| google.golang.org/grpc/codes | Package codes defines the canonical error codes used by gRPC. |
| google.golang.org/grpc/metadata | Package metadata define the structure of the metadata supported by gRPC library. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
| time | Package time provides functionality for measuring and displaying time. |