Translation strings are held, per language, in text files (either YAML or JSON), and compile into .gtr or .gtr.gz (gzip compressed) files.
Translations can be referenced in Go code either by an index, or a namespace and translation ID. Referencing by index is the fastest, most efficient, and what this library was built for. Indexes are stored as constants in generated Go dictionary files by namespace, and are also held in the dictionary.
See the github page for full documentation.