anchor.diff:      ];
       buildInputs =
         (self.nativeDeps."swig" or []);
  -    deps = [
  -      self.by-version."underscore"."1.6.0"
  -    ];
  +    deps = {
  +      "underscore-1.7.0" = self.by-version."underscore"."1.7.0";
  +    };
       peerDependencies = [
       ];
       passthru.names = [ "swig" ];
  
positive.code:   by-spec."proxy-addr"."1.0.1" =
      self.by-version."proxy-addr"."1.0.1";
    by-version."proxy-addr"."1.0.1" = lib.makeOverridable self.buildNodePackage {
      name = "node-proxy-addr-1.0.1";
      src = [
        (fetchurl {
          url = "http://registry.npmjs.org/proxy-addr/-/proxy-addr-1.0.1.tgz";
  
negative.code:   by-spec."sntp"."0.1.x" =
      self.by-version."sntp"."0.1.4";
    by-version."sntp"."0.1.4" = lib.makeOverridable self.buildNodePackage {
      name = "sntp-0.1.4";
      bin = false;
      src = [
        (fetchurl {
          url = "http://registry.npmjs.org/sntp/-/sntp-0.1.4.tgz";
  