code: def merge(base: Dict[Any, Any], extension: Dict[Any, Any]) -> Dict[Any, Any]:
      '''Merge extension into base recursively.
  
      **Argumetnts**
  
      :``base``:      dictionary to overlay values onto
      :``extension``: dictionary to overlay with
  
      **Return Value(s)**
  
      Resulting dictionary from overlaying extension on base.
  
      '''
  
      _ = copy.deepcopy(base)
  
      for key, value in extension.items():
          if isinstance(value, Dict) and key in _:
              _[key] = merge(_[key], value)
          else:
              _[key] = value
  
      return f merge(base: Dict[Any, Any], extension: Dict[Any, Any]) -> Dict[Any, Any]:
      '''Merge extension into base recursively.
  
      **Argumetnts**
  
      :``base``:      dictionary to overlay values onto
      :``extension``: dictionary to overlay with
  
      **Return Value(s)**
  
      Resulting dictionary from overlaying extension on base.
  
      '''
  
      _ = copy.deepcopy(base)
  
      for key, value in extension.items():
          if isinstance(value, Dict) and key in _:
              _[key] = merge(_[key], value)
          else:
              _[key] = value
  
      return _
docs: Merge extension into base recursively.
  
      **Argumetnts**
  
      :``base``:      dictionary to overlay values onto
      :``extension``: dictionary to overlay with
  
      **Return Value(s)**
  
      Resulting dictionary from overlaying extension on base.