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@@ -0,0 +1,24 @@
+mod namespace;
+pub use namespace::*;
+
+use super::Id;
+
+pub struct Fn {
+    pub body: Body,
+}
+
+pub struct Body {
+    pub statements: Vec<Statement>,
+}
+
+pub struct Statement {
+    ty: StatementTy,
+}
+
+pub enum StatementTy {
+    Define,
+    Assign,
+    Call { target: VarId, args: VarId },
+}
+
+pub type VarId = usize;