TableStyle setPadType(int $padType)

setStyle(string $name,

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

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

DOMDocument getInputDefinitionDocument(

addArgument(InputArgument $argument)

int getArgumentRequiredCount() Returns the number of required InputArguments.

string getName() Returns the argument name.

class Helper implements

Question setMaxAttempts(null|int $attempts)