(parser, token)
return node
this overrides {% block %} to include the combined contents of
    all {% addtoblock %} nodes
this overrides {% block %} to include the combined contents of
    all {% addtoblock %} nodes
this overrides { % block % } to include the combined contents of all { % addtoblock % } nodes
def appending_block(parser, token):
    """
    this overrides {% block %} to include the combined contents of
    all {% addtoblock %} nodes
    """
    node = loader_tags.do_block(parser, token)
    node.__class__ = AppendingBlockNode
    return node
def appending_block ( parser , token ) : node = loader_tags . do_block ( parser , token ) node . __class__ = AppendingBlockNode return node