(layout, placeholder_uid)
return placeholder_uid in layout.placeholder_uids
Validate the placeholder.

    :param string layout:
    :param string placeholder_uid:
    :return bool:
Validate the placeholder.
Validate the placeholder .
def validate_placeholder_uid(layout, placeholder_uid):
    """Validate the placeholder.

    :param string layout:
    :param string placeholder_uid:
    :return bool:
    """
    return placeholder_uid in layout.placeholder_uids
def validate_placeholder_uid ( layout , placeholder_uid ) : return placeholder_uid in layout . placeholder_uids