Function get_fast_hasher 

pub fn get_fast_hasher() -> FastHasher

Returns a FastHasher instance backed by a shared, global state.

Values hashed with a FastHasherinstance created with this method will be consistent within the same process, but will not be consistent across different runs of the application. Additionally, values hashed with this instance will not be consistent with those hashed by get_fast_build_hasher, as that function returns a randomly-seeded state for each call.