Retrieves the current best approximity of invariant locale (like "culture-independent", or "invariant culture" in .NET).
Currently this implementation is returning en as a "standard" locale for various locale-related operations, such as sorting, formatting, etc.
en
Note that the implementation is subject to changes in the future.
Retrieves the current best approximity of invariant locale (like "culture-independent", or "invariant culture" in .NET).