code: @Pure
  	@Inline(value = "TextUtil.join('{', '}', $1)", imported = {TextUtil.class})
  	public static String mergeBrackets(Iterable<?> strs) {
  		return join('{', '}', strs);
  	}
docs: Merge the given strings with to brackets.
  The brackets are used to delimit the groups
  of characters.
  
  <p>Examples:
  <ul>
  <li><code>mergeBrackets("a","b","cd")</code> returns the string
  <code>"{a}{b}{cd}"</code></li>
  <li><code>mergeBrackets("a{bcd")</code> returns the string
  <code>"{a{bcd}"</code></li>
  </ul>
  
  @param strs is the array of strings.
  @return the string with bracketed strings.
  @see #join(char, char, Iterable)