anchor.diff:  
     neosnippet-vim = buildVimPluginFrom2Nix {
       pname = "neosnippet-vim";
  -    version = "2019-12-12";
  +    version = "2019-12-22";
       src = fetchFromGitHub {
         owner = "Shougo";
         repo = "neosnippet.vim";
  -      rev = "84057dd1dd28e1198d0b2777301ef6cafd8f2cef";
  -      sha256 = "164077vmqf4kcj0kn5c027faa4fjzfdbl1cz4j45dxpbak36hy6w";
  +      rev = "e559f3060e512efe8d7795afce74119552dcd838";
  +      sha256 = "1gchpdvg19lv96j5cryvlbfmavmybrnjps1a4c7hz9ias34w12ji";
       };
     };
   
  
positive.code: 
    vim = buildVimPluginFrom2Nix {
      pname = "vim";
      version = "2019-12-19";
      src = fetchFromGitHub {
        owner = "dracula";
        repo = "vim";
        rev = "a6f90e5691d8b80db024d8298b3fb461752e0248";
        sha256 = "1g19lgjlqcyvs5x120sv5iwnggjyfzyl1k9w4b39yhhfmqi1vvf9";
      };
    };
  
  
negative.code: 
    deoplete-jedi = buildVimPluginFrom2Nix {
      pname = "deoplete-jedi";
      version = "2019-12-22";
      src = fetchFromGitHub {
        owner = "deoplete-plugins";
        repo = "deoplete-jedi";
        rev = "63beb118c8d215bad4f8759b84608fd463abebc5";
        sha256 = "1rilqprq6fq01qj1idgvy38p827gjq2bsx93xfbim6yc4hkj10d9";
        fetchSubmodules = true;
      };
    };
  