code: def test_is_jumpstart_model_uri():
      assert not utils.is_jumpstart_model_uri("fdsfdsf")
      assert not utils.is_jumpstart_model_uri(
          "s3://not-jumpstart-bucket/sdfsdfds"
      )
      assert not utils.is_jumpstart_model_uri("some/actual/localfile")
  
      assert utils.is_jumpstart_model_uri(
          random_jumpstart_s3_uri(
              "source_directory_tarballs/sourcedir.tar.gz"
          )
      )
      assert utils.is_jumpstart_model_uri(
          random_jumpstart_s3_uri("random_key")
      )
  
imports: from __future__ import absolute_import
  import os
  from unittest import TestCase
  from mock.mock import Mock, patch
  import pytest
  import random
  from sagemaker.jumpstart import utils
  from sagemaker.jumpstart.constants import DEFAULT_JUMPSTART_SAGEMAKER_SESSION, ENV_VARIABLE_DISABLE_JUMPSTART_LOGGING, ENV_VARIABLE_JUMPSTART_CONTENT_BUCKET_OVERRIDE, ENV_VARIABLE_JUMPSTART_GATED_CONTENT_BUCKET_OVERRIDE, JUMPSTART_DEFAULT_REGION_NAME, JUMPSTART_GATED_AND_PUBLIC_BUCKET_NAME_SET, JUMPSTART_LOGGER, JUMPSTART_REGION_NAME_SET, JUMPSTART_RESOURCE_BASE_NAME, JumpStartScriptScope
  from functools import partial
  from sagemaker.jumpstart.enums import JumpStartTag, MIMEType
  from sagemaker.jumpstart.exceptions import DeprecatedJumpStartModelError, VulnerableJumpStartModelError
  from sagemaker.jumpstart.types import JumpStartModelHeader, JumpStartVersionedModelId
  from tests.unit.sagemaker.jumpstart.utils import get_spec_from_base_spec
  from mock import MagicMock
label_desc: Use image node_id 12 for calling a global function with example usage: test_is_jumpstart_model_uri() without return types