// on cluster configurations provided in `server_def`; otherwise, update
  // existing context state with the provided `server_def`. Contexts created
  // on remote tasks will be considered stale and garbage collected after
  // `keep_alive_secs` of inactivity.
  virtual Status SetOrUpdateServerDef(const ServerDef& server_def,
                                      bool reset_context, int keep_alive_secs,

    frequently try to decode an image as the wrong type.
*   Improve implicit broadcasting lowering.
*   Improving stability of GCS/BigQuery clients by a faster retrying of stale
    transmissions.
*   Remove OpKernelConstruction::op_def() as part of minimizing proto
    dependencies.
*   VectorLaplaceDiag distribution added.