Use default for tokenfactory token balances if none specified.

local-interchaintest/src/setup.rs

@@ -323,6 +323,7 @@ pub struct Test {
 
     /// How much of a given subdenom acc0 owns on a given chain
     /// (chain, token) -> balance
+    #[builder(default)]
     tokenfactory_token_balances_acc0: HashMap<Denom, u128>,
 
     /// (Denom a, denom b) or (offer asset, ask asset) -> pool
@@ -335,14 +336,6 @@ pub struct Test {
     run_arbbot: bool,
 }
 
-impl TestBuilder {
-    pub fn with_arbbot(mut self) -> Self {
-        self.run_arbbot = Some(true);
-
-        self
-    }
-}
-
 impl Test {
     pub fn setup(
         &mut self,
@@ -515,6 +508,12 @@ impl TestBuilder {
 
         self
     }
+
+    pub fn with_arbbot(mut self) -> Self {
+        self.run_arbbot = Some(true);
+
+        self
+    }
 }
 
 /// A pool that should be tested against.