Not able to import FilterMap type

[Plebshot]

As title says, i'm trying to get the FilterMap type into scope to store one in a struct. It does not seem to exist on any imports although the source code shows it. It's also not showing up on docs.rs search

[zjijz]

For some reason, async_std follows a pattern where Future combinator types are pub, but defined in non-pub modules. This isn't the pattern followed for Stream combinators, however.

The issue with FilterMap is that it was added to the "future" non-pub use section of

async-std/src/stream/stream/mod.rs

Line 74 in bf316b0

use filter_map::FilterMap;

instead of the "stream" pub use section below at

async-std/src/stream/stream/mod.rs

Line 98 in bf316b0

pub use chain::Chain;

.