'Load children :class:`Elements <Element>` with level lower or equal to the `max_level`
from the `stream` according to the `specs`
:param stream: file-like object from which to read
:param dict specs: see :ref:`specs`
:param int max_level: maximum level for children elements
:param list ignore_element_types: list of element types to ignore
:param list ignore_element_names: list of element names to ignore
:param int max_level: maximum level of elements'

def load(self, stream, specs, ignore_element_types=None, ignore_element_names=None, max_level=None):

    self.data = parse(stream, specs, self.size, ignore_element_types, ignore_element_names, max_level)
