IPython.core.completer:_deduplicate_completions

Yields

: `Completions` objects

: Completions coming from multiple sources, may be different but end up having

: the same effect when applied to ``text``. If this is the case, this will

: consider completions as equal and only emit the first encountered.

: Not folded in `completions()` yet for debugging purpose, and to detect when

: the IPython completer does return things that Jedi does not, but should be

: at some point.