| create_loop | Private event loops | 
| current_loop | Private event loops | 
| destroy_loop | Private event loops | 
| exists_loop | Private event loops | 
| global_loop | Private event loops | 
| later | Executes a function later | 
| later_fd | Executes a function when a file descriptor is ready | 
| next_op_secs | Relative time to next scheduled operation | 
| run_now | Execute scheduled operations | 
| with_loop | Private event loops | 
| with_temp_loop | Private event loops |