code: def group(self, value):
      if isinstance(value, bool):
          value = Group.yes if value else Group.no
  
      self._validate_named(value, Group)
  
      self._specifier["group"] = value
      return self
  
imports: import collections
label_desc: Use image node_id 8 for calling the Format obj's underlying member method code with example usage: obj.group(value) and returns: self