src/Api/SystemParameterRule.php
public function setParameters($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\SystemParameter::class);
        $this->parameters = $arr;

        return $this;
    }
public function setParameters($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\SystemParameter::class);
        $this->parameters = $arr;

        return $this;
    }
Define parameters. Multiple names may be defined for a parameter.
For a given method call, only one of them should be used. If multiple
names are used the behavior is implementation-dependent.
If none of the specified names are present the behavior is
parameter-dependent.

Generated from protobuf field <code>repeated .google.api.SystemParameter parameters = 2;</code>
@param \Google\Api\SystemParameter[]|\Google\Protobuf\Internal\RepeatedField $var
@return $this