code: function getEscapedString() {
    const type = NodeType.EscapedStringType;
    const token = tokens[pos];
    const line = token.ln;
    const column = token.col;
  
    pos++;
  
    const content = tokens[pos].value;
    const end = getLastPosition(content, line, column + 1);
  
    pos++;
  
    return newNode(type, content, line, column, end);
  }
docs: Get node with an escaped string
  @returns {Array} `['escapedString', ['string', x]]` where `x` is a string
  without `~` but with quotes