def METHOD_NAME(start_date: str = START_DATE_1, end_date: str = END_DATE_1):
    aws_signature = AWSSignature(
        service="execute-api",
        aws_access_key_id="AccessKeyId",
        aws_secret_access_key="SecretAccessKey",
        aws_session_token="SessionToken",
        region="US",
    )
    stream = FlatFileSettlementV2Reports(
        url_base="https://test.url",
        aws_signature=aws_signature,
        replication_start_date=start_date,
        replication_end_date=end_date,
        marketplace_id="id",
        authenticator=None,
        period_in_days=0,
        report_options=None,
        advanced_stream_options=None,
        max_wait_seconds=500,
    )
    return stream