anchor.diff:      src = fetchurl {
         url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/${pluginName}/${pluginName}-${esVersion}.zip";
         sha256 =
  -        if version == "7.10.2" then "sha256-JdWt5LzSbs0MIEuLJIE1ceTnNeTYI5Jt2N0Xj7OBO6g="
  +        if version == "7.11.1" then "0i98b905k1zwm3y9pfhr40v2fm5qdsp3icygibhxf7drffygk4l7"
           else if version == "6.8.3" then "1s2klpvnhpkrk53p64zbga3b66czi7h1a13f58kfn2cn0zfavnbk"
           else throw "unsupported version ${version} for plugin ${pluginName}";
       };
  
positive.code:     src = fetchurl {
        url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/${pluginName}/${pluginName}-${version}.zip";
        sha256 =
          if version == "7.10.2" then "sha256-yvxSkVyZDWeu7rcxxq1+IVsljZQKgWEURiXY9qycK1s="
          else if version == "6.8.3" then "0pmffz761dqjpvmkl7i7xsyw1iyyspqpddxp89rjsznfc9pak5im"
          else throw "unsupported version ${version} for plugin ${pluginName}";
      };
  
negative.code:     src = fetchurl {
        url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/${pluginName}/${pluginName}-${version}.zip";
        sha256 =
          if version == "7.11.1" then "10ln81zyf04qi9wv10mck8iz0xwfvwp4ni0hl1gkgvh44lf1n855"
          else if version == "6.8.3" then "0ggdhf7w50bxsffmcznrjy14b578fps0f8arg3v54qvj94v9jc37"
          else throw "unsupported version ${version} for plugin ${pluginName}";
      };
  