Helper macro to generate tuple pyramids. Useful to generate scaffolding to work around Rust
lacking variadics. Invoking all_tuples!(impl_foo, start, end, P, Q, ..)
invokes impl_foo providing ident tuples through arity start..end.
If you require the length of the tuple, see all_tuples_with_size!.
Helper macro to generate tuple pyramids with their length. Useful to generate scaffolding to
work around Rust lacking variadics. Invoking all_tuples_with_size!(impl_foo, start, end, P, Q, ..)
invokes impl_foo providing ident tuples through arity start..end preceded by their length.
If you don’t require the length of the tuple, see all_tuples!.