MyApp.Cldr.Territory.known_territory_subdivisions

You're seeing just the function known_territory_subdivisions, go back to MyApp.Cldr.Territory module for more information.
Link to this function

known_territory_subdivisions(territory_code)

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Specs

known_territory_subdivisions(Cldr.Territory.atom_binary_tag()) ::
  {:ok, binary()} | {:error, Cldr.Territory.error()}

Returns a list of subdivisions of a given territory.

Example

=> MyApp.Cldr.Territory.known_territory_subdivisions(:GB)
{:ok, ["gbabc", "gbabd", "gbabe", "gbagb", "gbagy", "gband", "gbann",
"gbans", "gbbas", "gbbbd", "gbbdf", "gbbdg", "gbben", "gbbex", "gbbfs",
"gbbge", "gbbgw", "gbbir", "gbbkm", "gbbmh", "gbbne", "gbbnh", "gbbns",
"gbbol", "gbbpl", "gbbrc", "gbbrd", "gbbry", "gbbst", "gbbur", "gbcam",
"gbcay", "gbcbf", "gbccg", "gbcgn", "gbche", "gbchw", "gbcld", "gbclk",
"gbcma", "gbcmd", "gbcmn", "gbcon", "gbcov", "gbcrf", "gbcry", "gbcwy",
"gbdal", "gbdby", "gbden", ...]}

iex> MyApp.Cldr.Territory.known_territory_subdivisions(:ZZZ)
{:error, {Cldr.UnknownTerritoryError, "The territory :ZZZ is unknown"}}