code: def test_snapshot_invalid_depedencies():
      # scenario 1: invalid file format
      invalid_dependencies_file = "usr/local/requirements.py"
      with pytest.raises(ValueError):
          RuntimeEnvironmentManager().snapshot(
              invalid_dependencies_file
          )
  
      # scenario 2: invalid keyword
      invalid_dependencies = "from_some_invalid_keyword"
      with pytest.raises(ValueError):
          RuntimeEnvironmentManager().snapshot(invalid_dependencies)
  
imports: from __future__ import absolute_import
  import subprocess
  import pytest
  from mock import patch, Mock
  import sys
  import shlex
  import os
  from mock.mock import MagicMock
  from sagemaker.remote_function.runtime_environment.runtime_environment_manager import RuntimeEnvironmentManager, RuntimeEnvironmentError
label_desc: Use image node_id 5 for calling a global function with example usage: test_snapshot_invalid_depedencies() without return types