code: def p_functioncall(self, p):
          'functioncall : identifier LPAREN func_args RPAREN'
          p[0] = FunctionCall(p[1], p[3], lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1)f p_functioncall(self, p):
          'functioncall : identifier LPAREN func_args RPAREN'
          p[0] = FunctionCall(p[1], p[3], lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1))
docs: functioncall : identifier LPAREN func_args RPAREN