original_string: public function group($keys, array $initial, $reduce, array $options = array())
      {
          return $this->getCollection()->group($keys, $initial, $reduce, $options);
      }
code: public function group($keys, array $initial, $reduce, array $options = array())
      {
          return $this->getCollection()->group($keys, $initial, $reduce, $options);
      }
code_tokens: public function group ( $ keys , array $ initial , $ reduce , array $ options = array ( ) ) { return $ this -> getCollection ( ) -> group ( $ keys , $ initial , $ reduce , $ options ) ; }
docstring: Shortcut to the collection group method.
  
  @param mixed $keys    The keys.
  @param array $initial The initial value.
  @param mixed $reduce  The reduce function.
  @param array $options The options (optional).
  
  @return array The result
  
  @see \MongoCollection::group()
  
  @api
docstring_tokens: Shortcut to the collection group method .