1 files changed, 16 insertions, 0 deletions
diff --git a/src/param.rs b/src/param.rs
new file mode 100644
index 0000000..daccc45
--- /dev/null
+++ b/src/param.rs
@@ -0,0 +1,16 @@
+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
+        }
+     };
+);