def METHOD_NAME():
    client = boto3.client("apigatewayv2", region_name="eu-west-1")
    api_id = client.create_api(Name="test-api", ProtocolType="HTTP")["ApiId"]
    int_id = client.create_integration(ApiId=api_id, IntegrationType="HTTP")[
        "IntegrationId"
    ]
    int_res = client.create_integration_response(
        ApiId=api_id,
        ContentHandlingStrategy="CONVERT_TO_BINARY",
        IntegrationId=int_id,
        IntegrationResponseKey="int_res_key",
        ResponseParameters={"x-header": "header-value"},
        ResponseTemplates={"t": "template"},
        TemplateSelectionExpression="tse",
    )
    assert int_res["ContentHandlingStrategy"] == "CONVERT_TO_BINARY"
    assert "IntegrationResponseId" in int_res
    assert int_res["IntegrationResponseKey"] == "int_res_key"
    assert int_res["ResponseParameters"] == {"x-header": "header-value"}
    assert int_res["ResponseTemplates"] == {"t": "template"}
    assert int_res["TemplateSelectionExpression"] == "tse"