async rejectGroupMembershipRequests(options = {}) {
        return await this.client.rejectGroupMembershipRequests(this.id._serialized, options);
    }
Rejects membership requests if any
@param {MembershipRequestActionOptions} options Options for performing a membership request action
@returns {Promise<Array<MembershipRequestActionResult>>} Returns an array of requester IDs whose membership requests were rejected and an error for each requester, if any occurred during the operation. If there are no requests, an empty array will be returned