Map from parameter names to values that were used for those parameters.

Generated from protobuf field <code>map<string, string> parameters = 8;</code>
@param array|\Google\Protobuf\Internal\MapField $var
@return $this
510863
public function setParameters($var)
    {
        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
        $this->parameters = $arr;

        return $this;
    }
279186
public function setExpressions($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Dlp\V2\RecordCondition_Expressions::class);
        $this->expressions = $var;

        return $this;
    }
523305
public function setMetadata($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Spanner\V1\ResultSetMetadata::class);
        $this->metadata = $var;

        return $this;
    }
902137
public function setMethod($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\MethodDescriptorProto::class);
        $this->method = $arr;
        $this->has_method = true;

        return $this;
    }
787092
public function setGerrit($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\DevTools\Source\V1\GerritSourceContext::class);
        $this->writeOneof(3, $var);

        return $this;
    }
341545
public function setDataset($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\AutoMl\V1beta1\Dataset::class);
        $this->dataset = $var;

        return $this;
    }
458578
public function setMixins($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Mixin::class);
        $this->mixins = $arr;

        return $this;
    }
1296279
public function setMapValue($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Firestore\V1beta1\MapValue::class);
        $this->writeOneof(6, $var);

        return $this;
    }
1234569
public function setFieldId($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Dlp\V2\FieldId::class);
        $this->field_id = $var;

        return $this;
    }
719781
public function setReservedRange($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto\ReservedRange::class);
        $this->reserved_range = $arr;
        $this->has_reserved_range = true;

        return $this;
    }
463447
public function setLink($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Trace\V2\Span\Link::class);
        $this->link = $arr;

        return $this;
    }
63413
public function setBigQueryField($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Dlp\V2\BigQueryField::class);
        $this->writeOneof(3, $var);

        return $this;
    }
736288
public function setQueryPlan($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Spanner\V1\QueryPlan::class);
        $this->query_plan = $var;

        return $this;
    }
9507
public function setMembers($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\MonitoredResource::class);
        $this->members = $arr;

        return $this;
    }
78897
public function setVertices($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Vision\V1\Vertex::class);
        $this->vertices = $arr;

        return $this;
    }
720254
public function setLinks($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Trace\V2\Span_Links::class);
        $this->links = $var;

        return $this;
    }
696823
public function setText($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
        $this->text = $arr;

        return $this;
    }