string getName() Returns the canonical name of this helper.

Helper[] getIterator()

class DescriptorHelper extends Helper

advance(int $step = 1, bool $redraw = false) Advances the progress output X steps.

HelperSet getHelperSet()

string getHorizontalBorderChar() Gets horizontal border character.

advance() Advances the indicator.

setBarCharacter(string $char) Sets the bar character.

string ask(InputInterface $input

static callable|null getPlaceholderFormatterDefinition(string $name) Gets the placeholder