summary: Deadline exceeded
description: |
  The deadline expired before the operation could complete. For operations
  that change the state of the system, this error may be returned
  even if the operation has completed successfully.  For example, a
  successful response from a server could have been delayed long
  enough for the deadline to expire.

  HTTP Mapping: 504 Gateway Timeout
value:
  error:
    code: 4
    status: DEADLINE_EXCEEDED
    message: The deadline expired before the operation could complete.