Configuring the l10n.yaml file

The l10n.yaml file allows you to configure the gen-l10n tool
to specify:

where all the input files are located

where all the output files should be created

what Dart class name to give your localizations delegate

For a full list of options, either run flutter gen-l10n --help
at the command line or refer to the following table:

arb-dir

The directory where the template and translated arb files are located. The default is lib/l10n.

output-dir