@property<EOL><INDENT>def top_parent(self):<DEDENT>
parent = self.parent<EOL>while parent is not None:<EOL><INDENT>if parent.parent is None:<EOL><INDENT>return parent<EOL><DEDENT>else:<EOL><INDENT>parent = parent.parent<EOL><DEDENT><DEDENT>return self<EOL>
Reference to top parent declaration.

   @type: declaration_t