public function get_customers( $fields = null, $filter = array(), $page = 1 ) {

		$filter['page'] = $page;

		$query = $this->query_customers( $filter );

		$customers = array();

		foreach ( $query->get_results() as $user_id ) {

			if ( ! $this->is_readable( $user_id ) ) {
				continue;
			}

			$customers[] = current( $this->get_customer( $user_id, $fields ) );
		}

		$this->server->add_pagination_headers( $query );

		return array( 'customers' => $customers );
	}