writeln(string|array $messages, int $options) Writes a message to the output and adds a newline at

setVerbosity(int $level) Sets the verbosity of the output.

bool isDebug() Returns whether verbosity is debug (-vvv).

bool isQuiet() Returns whether verbosity is quiet (-q).

writeln(string|array $messages, int $options = self::OUTPUT_NORMAL) Writes a message to the output

class StreamOutput extends Output

int getVerbosity() Gets the current verbosity of the output.

OutputFormatterInterface

write(string|array $messages, bool $newline = false, int $options) Writes a message to the output

setDecorated(bool $decorated) Sets the decorated flag.