Emilua API Reference system out system.out Synopsis local system = require "system" system.out Functions write_some(self, buffer: byte_span) → integer Write data to stdout and blocks current fiber until it completes or errs. Returns the number of bytes written. First argument is ignored and it’s only there to make it have a stream-like interface. dup(self) → file_descriptor Creates a new file descriptor that refers to STDOUT_FILENO. isatty(self) → boolean See isatty(3). tcgetpgrp(self) → integer See tcgetpgrp(3). tcsetpgrp(self, pgid_id: integer) See tcsetpgrp(3). in_ err