setApplication(Application $application = null)

int run(InputInterface $input,

Command setAliases(string[] $aliases)

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.

InputDefinition getNativeDefinition()

array getUsages() Returns alternative usages of the command.

bool isEnabled() Checks whether the command is enabled or not in the current environment.

string getProcessedHelp() Returns the processed help for the command replacing the %command.name%