code: def find_stack_elements(self, module, module_name="", _visited_modules=None):
          
          from types import ModuleType
          if _visited_modules is None: _visited_modules = []
          _visited_modules.append(module)
          #
          elements = []
          for el_name in dir(module):
              the_el = module.__getattribute__(el_name)
              if isinstance(the_el, ModuleType):
                  # Recursively go into the module
                  if the_el in _visited_modules:
                      continue
                  elements = elements + self.find_stack_elements(the_el, module_name + el_name + ".", _visited_modules)
              elif isinstance(the_el, StackElement):
                  # Add to list
                  elements.append((module_name, el_name, the_el))
          return elements
docs: This function goes through the given container and returns the stack elements. Each stack
          element is represented by a tuple:
              ( container_name, element_name, stack_element)
          The tuples are returned in an array