src/Group.php
public function getGroup()
    {
        /** @var null|Person $person */

        if (is_null($this->regid) === true) {
            try {
                $resp = static::getGroupConnection()->execGET(
                    $this->identifier
                );
            } catch (\Exception $e) {
                throw $e;
            }

            $this->parseGroup($resp->getData());
        }

        return $this;
    }
public function getGroup()
    {
        /** @var null|Person $person */

        if (is_null($this->regid) === true) {
            try {
                $resp = static::getGroupConnection()->execGET(
                    $this->identifier
                );
            } catch (\Exception $e) {
                throw $e;
            }

            $this->parseGroup($resp->getData());
        }

        return $this;
    }
Queries GWS to generate a Group, given an identifier. Identifier may be group id, or group regid

@return Group