code: function getAtkeyword() {
    const type = NodeType.AtkeywordType;
    const token = tokens[pos];
    const line = token.ln;
    const column = token.col;
  
    // Skip `@`.
    pos++;
  
    const content = getIdentOrInterpolation();
  
    return newNode(type, content, line, column);
  }
docs: Gets node with @-word.
  
  @return {!Node}