NMSettings
@NM_SETTINGS_INTERFACE_ERROR_INVALID_CONNECTION:
@NM_SETTINGS_INTERFACE_ERROR_READ_ONLY_CONNECTION:
@NM_SETTINGS_INTERFACE_ERROR_INTERNAL_ERROR:
@NM_SETTINGS_INTERFACE_ERROR_SECRETS_UNAVAILABLE:
@NM_SETTINGS_INTERFACE_ERROR_SECRETS_REQUEST_CANCELED:
@NM_SETTINGS_INTERFACE_ERROR_PERMISSION_DENIED:
@NM_SETTINGS_INTERFACE_ERROR_INVALID_SETTING:
@void:
@Returns:
@settings:
@error:
@user_data:
@void:
@Returns:
@settings:
@Returns:
@settings:
@path:
@Returns:
@settings:
@connection:
@callback:
@user_data:
@Returns: