Updating docstrings
Refactor: Push details down into from-fake-maps
These tests no longer make sense here.
The responsibility of arg-matchers is abstracted from the fake. As far as its concerned it gets a function that is used to match arguments, not the internal details of how that works
More examples as documentation
Refactor: Cleaner not to convert to a string.
Refactor: Extract condition for arity check
Keep backticks out of the lexical maps.
Support & not in the first position of the arguments.
Better coverage of arg-matcher methods.