Decli: Declarative CLI Tool

Decli is a minimal wrapper around Python's `argparse` module, designed to simplify the creation of command-line interfaces (CLIs) using a declarative approach. It allows developers to define arguments, subcommands, and groups through Python dictionaries, promoting a clear separation between CLI definition and application logic. The library aims to reduce boilerplate commonly associated with `argparse`, making it easier to build complex CLIs. The current version is 0.6.3, and it is actively maintained.