How to get access to args/kwargs inside lambda?

Is it possible to express this kind of lambda?
`lambda a, b: a * b`

I intuitively tried this approach, but it doesn't work...
`_._1 * _._2`

No file, test, or entry point is named in the issue. Start by locating the implementation and tests for placeholder-based lambda expressions, then determine whether positional and keyword arguments can be represented; done means the requested lambda form or an explicitly documented limitation is covered by tests.

Written by the indexing model from the issue text.