code: def add_path(self, path, attribs=None, group=None):
          
  
          # If not given a parent, assume that the path does not have a group
          if group is None:
              group = self.tree.getroot()
  
          # If given a list of strings (one or more), assume it represents
          # a sequence of nested group names
          elif all(isinstance(elem, str) for elem in group):
              group = self.get_or_add_group(group)
  
          elif not isinstance(group, Element):
              raise TypeError(
                  'Must provide a list of strings or an xml.etree.Element '
                  'object. Instead you provided {0}'.format(group))
  
          else:
              # Make sure that the group belongs to this Document object
              if not self.contains_group(group):
                  warnings.warn('The requested group does not belong to '
                                'this Document')
  
          # TODO: It might be better to use duck-typing here with a try-except
          if isinstance(path, Path):
              path_svg = path.d()
          elif is_path_segment(path):
              path_svg = Path(path).d()
          elif isinstance(path, str):
              # Assume this is a valid d-string.
              # TODO: Should we sanity check the input string?
              path_svg = path
          else:
              raise TypeError(
                  'Must provide a Path, a path segment type, or a valid '
                  'SVG path d-string. Instead you provided {0}'.format(path))
  
          if attribs is None:
              attribs = {}
          else:
              attribs = attribs.copy()
  
          attribs['d'] = path_svg
  
          return SubElement(group, 'path', attribs)
docs: Add a new path to the SVG.