setApplication(Application $application = null)

Command setAliases(string[] $aliases)

int run(InputInterface $input,

InputDefinition getNativeDefinition()

Command addUsage(string $usage)

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

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

array getUsages() Returns alternative usages of the command.

string getDescription() Returns the description for the command.

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