public function removeMapping($attributeName)
    {
        if ($this->hasMapping($attributeName)) {
            $this->mappingsContainer[$attributeName] = null;
        }

        return $this;
    }
public function removeMapping($attributeName)
    {
        if ($this->hasMapping($attributeName)) {
            $this->mappingsContainer[$attributeName] = null;
        }

        return $this;
    }
public function removeMapping ( $ attributeName ) { if ( $ this -> hasMapping ( $ attributeName ) ) { $ this -> mappingsContainer [ $ attributeName ] = null ; } return $ this ; }
Removes mapping from indicated attribute

@param string $attributeName
@return $this
Removes mapping from indicated attribute