public function assign(string $property, string $key)
    {
        $this->doAssign($property, $key);

        return $this;
    }
public function assign(string $property, string $key)
    {
        $this->doAssign($property, $key);

        return $this;
    }
public function assign ( string $ property , string $ key ) { $ this -> doAssign ( $ property , $ key ) ; return $ this ; }
Simple property-key pair assigning

@param string $property Object property
@param string $key      Map key

@return $this
Simple property - key pair assigning