Container/src/V1/SetMasterAuthRequest.php
public function setUpdate($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Container\V1\MasterAuth::class);
        $this->update = $var;

        return $this;
    }
public function setUpdate($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Container\V1\MasterAuth::class);
        $this->update = $var;

        return $this;
    }
public function setUpdate ( $ var ) { GPBUtil :: checkMessage ( $ var , \ Google \ Cloud \ Container \ V1 \ MasterAuth :: class ) ; $ this -> update = $ var ; return $ this ; }
A description of the update.

Generated from protobuf field <code>.google.container.v1.MasterAuth update = 5;</code>
@param \Google\Cloud\Container\V1\MasterAuth $var
@return $this
A description of the update .