code: def __init__(self, **kwargs):
      self._json = kwargs
  
file_path: ray/dashboard/modules/job/tests/test_utils.py
imports: from tempfile import NamedTemporaryFile
  import sys
  import pytest
  from ray.dashboard.modules.job.common import JobSubmitRequest
  from ray.dashboard.modules.job.utils import file_tail_iterator, strip_keys_with_value_none, parse_and_validate_request, redact_url_password
label_desc: Use image node_id 1 to create a new MockRequest object  with example: obj = MockRequest()