I should be working...

src/db/_cheques.rs

@@ -0,0 +1,21 @@
+use crate::db::_external_id::ExternalId;
+
+pub struct SecurityEmitterCheque {
+    drawer_user_id: ExternalId,
+    security_id: ExternalId,
+    cheque_number: u32,
+    amount: u32,
+}
+
+impl Cheque {
+    pub fn is_valid(self: &Cheque) -> bool {
+        return true;
+    }
+
+
+    pub fn cash_cheque(&self){
+
+    }
+
+
+}