write(string|array $messages, bool $newline = false, int $options = self::OUTPUT_NORMAL) Writes a
OutputInterface getErrorOutput()
bool isVerbose() Returns whether verbosity is verbose (-v).
OutputFormatterInterface
setFormatter(
bool isDecorated() Gets the decorated flag.
interface OutputInterface OutputInterface is the interface implemented by all Output classes.
write(string|array $messages, bool $newline = false, int $options) Writes a message to the output
setVerbosity(int $level) Sets the verbosity of the output.
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