class_docstr: Fake GRIB file returned by pygrib.open.
class_docstr_tok: ["Fake","GRIB","file","returned","by","pygrib.open","."]
docstr: Enter the context.
docstr_tok: ["Enter","the","context","."]
code: def __enter__(self):
      """Enter the context."""
      return self
  
imports: import sys
  import unittest
  from datetime import datetime
  from unittest import mock
  import numpy
  from pytest import approx
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 5 for calling the FakeGRIB obj's underlying member method code with example usage: obj.__enter__() and returns: self