I think you can modify this params. I didnt’t test it yet.
// Parse the user query arguments
$params = wp_parse_args( $args, array(
'type' => 'active', // active, newest, alphabetical, random or popular
'user_id' => false, // Pass a user_id to limit to only friend connections for this user
'exclude' => 1, // Users to exclude from results
'search_terms' => false, // Limit to users that match these search terms
'meta_key' => false, // Limit to users who have this piece of usermeta
'meta_value' => false, // With meta_key, limit to users where usermeta matches this value
'include' => false, // Pass comma separated list of user_ids to limit to only these users
'per_page' => 20, // The number of results to return per page
'page' => 1, // The page to return if limiting per page
'populate_extras' => true, // Fetch the last active, where the user is a friend, total friend count, latest update
'count_total' => 'count_query' // What kind of total user count to do, if any. 'count_query', 'sql_calc_found_rows', or false
) );
$retvals = bp_core_get_users($args);
print_r($retvals);
