describe(OutputInterface $output

setProgressCharacter(string $char) Sets the progress bar character.

table(array $headers, array $rows) Formats a table.

array getUsages() Returns alternative usages of the command.

setRows(array $rows) Parameters array $rows

TableStyle getStyle()

setHeaders(array $headers) Parameters array $headers

setInputStream(resource $stream) Sets the input stream to read from when interacting with the user

resource|null getInputStream() Returns the helper's input stream.

bool isVerbose() Returns whether verbosity is verbose (-v).