docs: def eager_partial(self, fn, *a, **kw):
          """Partially apply annotated callable, returning a partial function.
  
          By default, `partial` is lazy so that injections only happen when they
          are needed. Use `eager_partial` in place of `partial` when a guarantee
          of injection is needed at the time the partially applied function is
          created.
  
          `eager_partial` resolves arguments similarly to `partial` but relies on
          `functools.partial` for argument resolution when calling the final
          partial function.
          """
          args, kwargs = self.prepare_callable(fn, partial=True)
          args += a; kwargs.update(kw)
          return functools.partial(fn, *args, **kwargs)