code: function expressionPaths(basePath, expression) {
    const expr = Object.assign({}, expression);
    if (expr.tokenType === 'SimpleExpression') {
      if (expr.path === '@value') {
        expr.path = basePath;
      } else {
        expr.path = paths.resolve(basePath, expr.path);
      }
    } else if (expr.tokenType === 'HelperExpression') {
      expr.args = expr.args.map((arg) => {
        if (arg.tokenType === 'StringLiteral') {
          return arg;
        }
  
        return expressionPaths(basePath, arg);
      });
    }
  
    return expr;
  }
docs: Resolve all expression paths relative to the loop
  @param {string} basePath
  @param {object} expression