Get local elt properties (not defined in elt type or base classes).

    :param elt: local properties elt. Not None methods.
    :param keys: keys of properties to get from elt.
    :param ctx: elt ctx from where get properties. Equals elt if None. It
        allows to get function properties related to a class or instance if
        related function is defined in base class.

    :return: dict of properties by name.
    :rtype: dict

def get_local_properties(elt, keys=None, ctx=None):
    """Get local elt properties (not defined in elt type or base classes).

    :param elt: local properties elt. Not None methods.
    :param keys: keys of properties to get from elt.
    :param ctx: elt ctx from where get properties. Equals elt if None. It
        allows to get function properties related to a class or instance if
        related function is defined in base class.

    :return: dict of properties by name.
    :rtype: dict
    """

    if isinstance(keys, string_types):
        keys = (keys,)

    result = _get_properties(elt, keys=keys, local=True, ctx=ctx)

    return result