as2fm.scxml_converter.scxml_entries.xml_utils.read_value_from_xml_child

as2fm.scxml_converter.scxml_entries.xml_utils.read_value_from_xml_child(xml_tree: _Element, child_tag: str, custom_data_types: Dict[str, StructDefinition], valid_types: Iterable[Type[ScxmlBase | str]], *, none_allowed: bool = False) → str | ScxmlBase | None

Try to read the value of a child tag from the xml tree. If the child is not found, return None.