Imports of worker command

PathSynopsis
flagPackage flag implements command-line flag parsing.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
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/grpcPackage grpc implements an RPC system called gRPC.
google.golang.org/grpc/benchmarkPackage benchmark implements the building blocks to setup end-to-end gRPC benchmarks.
google.golang.org/grpc/benchmark/grpc_testing
google.golang.org/grpc/benchmark/statsPackage stats tracks the statistics associated with benchmark runs.
google.golang.org/grpc/codesPackage codes defines the canonical error codes used by gRPC.
google.golang.org/grpc/credentialsPackage credentials implements various credentials supported by gRPC library, which encapsulate all the state needed by a client to authenticate with a server and make various assertions, e.g., about the client's identity, role, or whether it is authorized to make a particular call.
google.golang.org/grpc/grpclogPackage grpclog defines logging for grpc.
ioPackage io provides basic interfaces to I/O primitives.
logPackage log implements a simple logging package.
mathPackage math provides basic constants and mathematical functions.
netPackage net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
net/httpPackage http provides HTTP client and server implementations.
net/http/pprofPackage pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool.
osPackage os provides a platform-independent interface to operating system functionality.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
runtimePackage runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
strconvPackage strconv implements conversions to and from string representations of basic data types.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
syscallPackage syscall contains an interface to the low-level operating system primitives.
timePackage time provides functionality for measuring and displaying time.