Imports of package calls

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
github.com/mesos/mesos-go/api/v1/libPackage mesos presents common v1 HTTP API message types in addition to extension APIs that aim to simplify use of the machine-generated code.
github.com/mesos/mesos-go/api/v1/lib/encoding
github.com/mesos/mesos-go/api/v1/lib/executorPackage executor is a generated protocol buffer package.