Datastore/src/V1/CompositeFilter.php
public function setOp($var)
    {
        GPBUtil::checkEnum($var, \Google\Cloud\Datastore\V1\CompositeFilter_Operator::class);
        $this->op = $var;

        return $this;
    }
public function setOp($var)
    {
        GPBUtil::checkEnum($var, \Google\Cloud\Datastore\V1\CompositeFilter_Operator::class);
        $this->op = $var;

        return $this;
    }
public function setOp ( $ var ) { GPBUtil :: checkEnum ( $ var , \ Google \ Cloud \ Datastore \ V1 \ CompositeFilter_Operator :: class ) ; $ this -> op = $ var ; return $ this ; }
The operator for combining multiple filters.

Generated from protobuf field <code>.google.datastore.v1.CompositeFilter.Operator op = 1;</code>
@param int $var
@return $this
The operator for combining multiple filters .