message: Minor eager service proto clarification.
diff: @@ -121,10 +121,17 @@ message RegisterFunctionResponse {
  // Eager Service defines a TensorFlow service that executes operations eagerly
  // on a set of local devices, on behalf of a remote Eager executor.
  //
  -// The service impl will keep track of the various peers and devices it has
  +// The service impl will keep track of the various clients and devices it has
  // access to and allows the client to enqueue ops on any devices that it is able
  // to access and schedule data transfers from/to any of the peers.
  //
  +// A client can generate multiple contexts to be able to independently execute
  +// operations, but cannot share data between the two contexts.
  +//
  +// NOTE: Even though contexts generated by clients should be independent, the
  +// lower level tensorflow execution engine is not, so they might share some data
  +// (e.g. a Device's ResourceMgr).
  +//
  ////////////////////////////////////////////////////////////////////////////////
  service EagerService {
  // This initializes the worker, informing it about the other workers in the
  