original_string: public function input($key = null, $default = null)
      {
          return $this->getParameter($key, $this->getPayloadData($key, $default));
      }
code: public function input($key = null, $default = null)
      {
          return $this->getParameter($key, $this->getPayloadData($key, $default));
      }
code_tokens: public function input ( $ key = null , $ default = null ) { return $ this -> getParameter ( $ key , $ this -> getPayloadData ( $ key , $ default ) ) ; }
docstring: Returns request input.
  
  @param null $key
  @param null $default
  
  @return array|string
docstring_tokens: Returns request input .