Redis/src/V1/UpdateInstanceRequest.php
public function setInstance($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Redis\V1\Instance::class);
        $this->instance = $var;

        return $this;
    }
public function setInstance($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Redis\V1\Instance::class);
        $this->instance = $var;

        return $this;
    }
public function setInstance ( $ var ) { GPBUtil :: checkMessage ( $ var , \ Google \ Cloud \ Redis \ V1 \ Instance :: class ) ; $ this -> instance = $ var ; return $ this ; }
Required. Update description.
Only fields specified in update_mask are updated.

Generated from protobuf field <code>.google.cloud.redis.v1.Instance instance = 2;</code>
@param \Google\Cloud\Redis\V1\Instance $var
@return $this
Required . Update description . Only fields specified in update_mask are updated .