src/Camunda/Query/Attribute/Source.php
public function setSource(?string $source)
    {
        $this->source = $source;
        $this->_source = null !== $source;

        return $this;
    }
public function setSource(?string $source)
    {
        $this->source = $source;
        $this->_source = null !== $source;

        return $this;
    }
Set source

@param string $source
@return object