src/SendPulseApi.php
public function getEmailsFromBook( $id ) {
        if( empty( $id ) ) {
            return $this->handleError( 'Empty book id' );
        }

        $requestResult = $this->sendRequest( 'addressbooks/' . $id . '/emails' );

        return $this->handleResult( $requestResult );
    }
public function getEmailsFromBook( $id ) {
        if( empty( $id ) ) {
            return $this->handleError( 'Empty book id' );
        }

        $requestResult = $this->sendRequest( 'addressbooks/' . $id . '/emails' );

        return $this->handleResult( $requestResult );
    }
List email addresses from book

@param $id
@return mixed|stdClass