code: def p_set_type(self, p):
          '''set_type : SET '<' field_type '>' annotations'''
          p[0] = ast.SetType(value_type=p[3], annotations=p[5]f p_set_type(self, p):
          '''set_type : SET '<' field_type '>' annotations'''
          p[0] = ast.SetType(value_type=p[3], annotations=p[5])
docs: set_type : SET '<' field_type '>' annotations