Monitoring/src/V3/AlertPolicy.php
public function setDocumentation($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy_Documentation::class);
        $this->documentation = $var;

        return $this;
    }
public function setDocumentation($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy_Documentation::class);
        $this->documentation = $var;

        return $this;
    }
public function setDocumentation ( $ var ) { GPBUtil :: checkMessage ( $ var , \ Google \ Cloud \ Monitoring \ V3 \ AlertPolicy_Documentation :: class ) ; $ this -> documentation = $ var ; return $ this ; }
Documentation that is included with notifications and incidents related to
this policy. Best practice is for the documentation to include information
to help responders understand, mitigate, escalate, and correct the
underlying problems detected by the alerting policy. Notification channels
that have limited capacity might not show this documentation.

Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Documentation documentation = 13;</code>
@param \Google\Cloud\Monitoring\V3\AlertPolicy\Documentation $var
@return $this
Documentation that is included with notifications and incidents related to this policy . Best practice is for the documentation to include information to help responders understand mitigate escalate and correct the underlying problems detected by the alerting policy . Notification channels that have limited capacity might not show this documentation .