This package contains parts of the API of exchange-calendars-extensions.
To separate the API from the implementation, the API is defined in a separate distribution package
exchange-calendars-extensions-api, i.e. this package,
that contains the sub-package exchange_calendars_extensions.api.
The implementation has been moved to the sub-package exchange_calendars_extensions.core and is distributed via
exchange-calendars-extensions.
The package exchange_calendars_extensions is now a namespace package that wraps the sub-packages.