code: function removeNestedBlocks (ast) {
    var tagged;
    while((tagged = findNestedBlocks(ast)).length) {
      fast.forEach(tagged, function (item) {
        var node = item[0],
            parent = item[1],
            index = parent.body.indexOf(node);
        fast.apply(Array.prototype.splice, parent.body, fast.concat([index, 1], node.body));
      });
    }
    return ast;
  }
docs: Remove pointless nested BlockStatements that are caused by the compilation process.