library/Rediska/Command/InsertToListBefore.php
public function create($key, $referenceValue, $value)
    {
        return $this->_create($key, self::BEFORE, $referenceValue, $value);
    }
public function create($key, $referenceValue, $value)
    {
        return $this->_create($key, self::BEFORE, $referenceValue, $value);
    }
Create command

@param string  $key            Key name
@param mixed   $referenceValue Reference value
@param mixed   $value          Value
@return Rediska_Connection_Exec