Defined strings
Some values accept a string value, but the value must be a string from a set of defined strings.
When you manually edit the configuration file, make sure the string value that you type matches a valid value of one of the defined strings. For example, the [aznapi-configuration] stanza section contains the following entry:
mode = {local|remote}
The value for mode is expected to be local or remote. Any other value is not valid and results in an error.
Parent topic: Guidelines for changing configuration files