def __update_stack_with_isotopes_infos(self, stack: dict):
for _key in stack:<EOL><INDENT>_elements = stack[_key]['<STR_LIT>']<EOL>for _element in _elements:<EOL><INDENT>_dict = _utilities.get_isotope_dicts(element=_element, database=self.database)<EOL>stack[_key][_element] = _dict<EOL><DEDENT><DEDENT>stack = self.__fill_missing_keys(stack=stack)<EOL>return stack<EOL>
retrieve the isotopes, isotopes file names, mass and atomic_ratio from each element in stack