Sends values to the associated `Receiver`.| docs.rs
Receives values from the associated `Sender`.| docs.rs
Waits on multiple concurrent branches, returning when the first branch completes, cancelling the remaining branches.| docs.rs
A contiguous growable array type, written as `Vec`, short for ‘vector’.| doc.rust-lang.org
The boolean type.| doc.rust-lang.org
`Result` is a type that represents either success (`Ok`) or failure (`Err`).| doc.rust-lang.org
The `Option` type. See the module level documentation for more.| doc.rust-lang.org