The request message for the operation isEnabled(). The response message for the operation isEnabled(). The request message for the operation setEnabled(). The response message for the operation setEnabled(). The request message for the operation setMessage(). The response message for the operation setMessage(). The request message for the operation getMessage(). The response message for the operation getMessage(). The request message for the operation setCallers(). The response message for the operation setCallers(). The request message for the operation getCallers(). The response message for the operation getCallers(). Check if enabled. Set state enabled. Set message. Get message. Set caller group. Get caller group.