anchor.diff:  
     webapi-vim = buildVimPluginFrom2Nix {
       pname = "webapi-vim";
  -    version = "2019-07-11";
  +    version = "2019-11-18";
       src = fetchFromGitHub {
         owner = "mattn";
         repo = "webapi-vim";
  -      rev = "4d1e59c4fe01dec9d3008704dd06977a7bc3b0f2";
  -      sha256 = "15k9h4nhsiwasv8l4mq6m8mw989pmpdfsinv9bdwh41q1pmkv551";
  +      rev = "10b8e926d85a3ab689c2966a3df1139bcb4e197f";
  +      sha256 = "1hbm2mgsncqdjjfgabgncr4ji90mjsa3z0cx7813vdf113v41x26";
       };
     };
   
  
positive.code: 
    vim-obsession = buildVimPluginFrom2Nix {
      pname = "vim-obsession";
      version = "2019-11-13";
      src = fetchFromGitHub {
        owner = "tpope";
        repo = "vim-obsession";
        rev = "a794bba99644b959c47fe46f82d0b9e676386b2f";
        sha256 = "11ds45kj3ckx67n5065vygc40bnwvamj9dyfpq9ir6a600xvv23i";
      };
    };
  
  
negative.code: 
    denite-nvim = buildVimPluginFrom2Nix {
      pname = "denite-nvim";
      version = "2019-11-18";
      src = fetchFromGitHub {
        owner = "Shougo";
        repo = "denite.nvim";
        rev = "2f8e00266f2958a02eb870b69f4ab0ef1d91c022";
        sha256 = "1n5h1ys0pb3lfg7zbyfdkshcy05kxd7f4d81qcr69k7n1ni44fvq";
      };
    };
  
  