CheckIfGcmServerSettingsPresent CheckIfGcmServerSettingsShouldBeSet DeleteGcmServerSettings GetGcmPropagation2VS GetGcmServerSettings SetGcmPropagation2VS UpdateGcmServerSettings

boolean Gcm::CheckIfGcmServerSettingsPresent ( ) It checks if GCM server settings are present. Returns: (boolean) True if settings are present; False otherwise. Note: It takes in account gcm propagation option.