message: Don't panic if value is 0
diff: @@ -204,7 +204,7 @@ export function getConstantByNetwork<K extends ConstantKeys>(name: K, network: N
  }
  let value = constants[network as Network][name];
  - if (!value) {
  + if (value == null) {
  throw new Error(`Don't know about the constant '${name}' for network ${network}`);
  }
  return value;
  