protected function getSourcePropertyName(string $propertyName): string
    {
        return $this->nameResolver->getSourcePropertyName(
            $propertyName,
            $this,
            $this->options
        );
    }
protected function getSourcePropertyName(string $propertyName): string
    {
        return $this->nameResolver->getSourcePropertyName(
            $propertyName,
            $this,
            $this->options
        );
    }
protected function getSourcePropertyName ( string $ propertyName ) : string { return $ this -> nameResolver -> getSourcePropertyName ( $ propertyName , $ this , $ this -> options ) ; }
Returns the name of the property we should fetch from the source object.

@param string $propertyName
@return string
Returns the name of the property we should fetch from the source object .