Imports of client command

PathSynopsis
flagPackage flag implements command-line flag parsing.
github.com/uber/tchannel-goPackage tchannel implements Go bindings for the TChannel protocol (https://github.com/uber/tchannel).
github.com/uber/tchannel-go/atomic
github.com/uber/tchannel-go/raw
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.
logPackage log implements a simple logging package.
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.
runtimePackage runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
timePackage time provides functionality for measuring and displaying time.