setApplication(Application $application = null)

Command setAliases(string[] $aliases)

int run(InputInterface $input,

Command addUsage(string $usage)

mergeApplicationDefinition(bool $mergeArgs = true) Merges the application definition with the command

mixed getHelper(string $name) Gets a helper instance by name.

array getUsages() Returns alternative usages of the command.

InputDefinition getNativeDefinition()

string getDescription() Returns the description for the command.

InputDefinition getDefinition()