use std::collections::BTreeMap;
pub type Parameters = BTreeMap<String, String>;
#[macro_export]
macro_rules! parameters(
{ $($key:expr => $value:expr),* } => {
#[allow(unused_mut)]
{
let mut m : ::std::collections::BTreeMap<String, String> =
::std::collections::BTreeMap::new();
$( m.insert($key.into(), $value.into()); )*
m
}
};
);