Hi,
It seems like when you have an SQS Queue invoking an Lambda function, that it does get the SQS message, however it seems that the MessageAttributes is always an empty object, even though there is MessageAttributes sent a long.


""" Get an existing event source mapping
        ---
        operationId: 'getEventSourceMapping'
        parameters:
            - name: 'request'
              in: body
    """
    mappings = event_source_mappings
    mappings = [m for m in mappings if mapping_uuid == m.get('UUID')]
    if len(mappings) == 0:
        return error_response('The resource you requested does not exist.', 404, error_type='ResourceNotFoundException')
    return jsonify(mappings[0])
@app.route('%s/event-source-mappings/' % PATH_ROOT, methods=['POST'])
def create_event_source_mapping():