def METHOD_NAME(sagemaker_session):
    arn1 = "arn:aws:sagemaker:us-west-2:123456789012:context/lineage-integ-3b05f017-0d87-4c37"
    obj = context.EndpointContext(sagemaker_session, context_name="foo", context_arn=arn1)
    sagemaker_session.sagemaker_client.query_lineage.return_value = {
        "Vertices": [
            {"Arn": arn1, "Type": "Model", "LineageType": "Artifact"},
        ],
        "Edges": [{"SourceArn": "arn1", "DestinationArn": "arn2", "AssociationType": "Produced"}],
    }
    sagemaker_session.sagemaker_client.describe_context.return_value = {
        "ContextName": "MyContext",
        "ContextArn": arn1,
        "Source": {
            "SourceUri": "arn:aws:sagemaker:us-west-2:0123456789012:endpoint/myendpoint",
            "SourceType": "ARN",
            "SourceId": "Thu Dec 17 17:16:24 UTC 2020",
        },
        "ContextType": "Endpoint",
        "Properties": {
            "PipelineExecutionArn": "arn:aws:sagemaker:us-west-2:0123456789012:\
                pipeline/mypipeline/execution/0irnteql64d0",
            "PipelineStepName": "MyStep",
            "Status": "Completed",
        },
        "CreationTime": 1608225384.0,
        "CreatedBy": {},
        "LastModifiedTime": 1608225384.0,
        "LastModifiedBy": {},
    }
    sagemaker_session.sagemaker_client.describe_artifact.return_value = {
        "ArtifactName": "MyArtifact",
        "ArtifactArn": arn1,
        "Source": {
            "SourceUri": "arn:aws:sagemaker:us-west-2:0123456789012:model/mymodel",
            "SourceType": "ARN",
            "SourceId": "Thu Dec 17 17:16:24 UTC 2020",
        },
        "ArtifactType": "Model",
        "Properties": {
            "PipelineExecutionArn": "arn:aws:sagemaker:us-west-2:0123456789012:\
                pipeline/mypipeline/execution/0irnteql64d0",
            "PipelineStepName": "MyStep",
            "Status": "Completed",
        },
        "CreationTime": 1608225384.0,
        "CreatedBy": {},
        "LastModifiedTime": 1608225384.0,
        "LastModifiedBy": {},
    }
    model_list = obj.models_v2()
    expected_calls = [
        unittest.mock.call(
            Direction="Descendants",
            Filters={"Types": ["ModelDeployment"], "LineageTypes": ["Action"]},
            IncludeEdges=False,
            MaxDepth=10,
            StartArns=[arn1],
        ),
        unittest.mock.call(
            Direction="Descendants",
            Filters={"Types": ["Model"], "LineageTypes": ["Artifact"]},
            IncludeEdges=False,
            MaxDepth=10,
            StartArns=[arn1],
        ),
    ]
    assert expected_calls == sagemaker_session.sagemaker_client.query_lineage.mock_calls
    expected_model_list = [
        ModelArtifact(
            artifact_arn=arn1,
            artifact_name="MyArtifact",
            source=ArtifactSource(
                source_uri="arn:aws:sagemaker:us-west-2:0123456789012:model/mymodel",
                source_types=None,
                source_type="ARN",
                source_id="Thu Dec 17 17:16:24 UTC 2020",
            ),
            artifact_type="Model",
            properties={
                "PipelineExecutionArn": "arn:aws:sagemaker:us-west-2:0123456789012:\
                pipeline/mypipeline/execution/0irnteql64d0",
                "PipelineStepName": "MyStep",
                "Status": "Completed",
            },
            creation_time=1608225384.0,
            created_by={},
            last_modified_time=1608225384.0,
            last_modified_by={},
        )
    ]
    assert expected_model_list[0].artifact_arn == model_list[0].artifact_arn
    assert expected_model_list[0].artifact_name == model_list[0].artifact_name
    assert expected_model_list[0].source == model_list[0].source
    assert expected_model_list[0].artifact_type == model_list[0].artifact_type
    assert expected_model_list[0].artifact_type == "Model"
    assert expected_model_list[0].properties == model_list[0].properties
    assert expected_model_list[0].creation_time == model_list[0].creation_time
    assert expected_model_list[0].created_by == model_list[0].created_by
    assert expected_model_list[0].last_modified_time == model_list[0].last_modified_time
    assert expected_model_list[0].last_modified_by == model_list[0].last_modified_by