amp/lib/YieldCommands.php

<?php

namespace Amp;

class YieldCommands {
    const ALL = 'all';
    const ANY = 'any';
    const SOME = 'some';
    const PAUSE = 'pause';
    const BIND = 'bind';
    const IMMEDIATELY = 'immediately';
    const ONCE = 'once';
    const REPEAT = 'repeat';
    const ON_READABLE = 'onreadable';
    const ON_WRITABLE = 'onwritable';
    const ENABLE = 'enable';
    const DISABLE = 'disable';
    const CANCEL = 'cancel';
    const NOWAIT = 'nowait';
    const NOWAIT_PREFIX = '@';
}