bool has(string $name) Returns true if the command exists, false otherwise.
InputDefinition getDefinition()
string getHelp() Gets the help message.
Command[] all(string $namespace = null)
Classes
string[] getNamespaces() Returns an array of all unique namespaces used by currently registered
renderException(Exception $e,
Command register(string $name)
static array getAbbreviations(array $names) Returns an array of possible abbreviations
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