amplify
macro_rules! bmap { { } => { ... }; { $($key:expr => $value:expr),+ } => { ... }; }
Macro for creating [BTreeMap] in the same manner as vec! is used for Vec:
BTreeMap
vec!
Vec
#[macro_use] extern crate amplify; let map = bmap! { s!("key") => 5, s!("other_key") => 10 };