Gets a command by its name.
The name of the command.
The command or undefined if it does not exist.
Registers a new command in the registry.
The name of the command.
The description of the command.
The callback of the command.
Optionalaliases: string[]The aliases of the command.
The command that was registered.
Registers a new command in the registry.
The name of the command.
The description of the command.
The registry of the command.
The callback of the command.
Optionalaliases: string[]The aliases of the command.
The command that was registered.
The commands of the registry.