original_string: public function removeRule($field, $rule)
      {
          if (isset($this->rules[$field][$rule])) {
              unset($this->rules[$field][$rule]);
              return true;
          }
          return false;
      }
code: public function removeRule($field, $rule)
      {
          if (isset($this->rules[$field][$rule])) {
              unset($this->rules[$field][$rule]);
              return true;
          }
          return false;
      }
code_tokens: public function removeRule ( $ field , $ rule ) { if ( isset ( $ this -> rules [ $ field ] [ $ rule ] ) ) { unset ( $ this -> rules [ $ field ] [ $ rule ] ) ; return true ; } return false ; }
docstring: Removes the rule in field
  
  @param string $field The name of field
  @param string $rule The name of rule
  @return bool
docstring_tokens: Removes the rule in field