//! Set/space primitives for defining machine learning problems.
//!
//! `spaces` provides set/space primitives to be used for defining properties of
//! machine learning problems. Traits such as `Space`, and it's derivatives, may
//! be used to define state/action spaces, for example. Mappings between
//! different spaces may also be defined using traits such as `Surjection` to
//! streamline many common preprocessing and type conversion tasks.
extern crate serde;
extern crate serde_derive;
import_all!;