code: @Deprecated
  	public static Tag getTag(Channel channel, String tagName) {
  		Collection<Tag> tag = Collections2.filter(channel.getTags(),
  				new TagNamePredicate(tagName));
  		if (tag.size() == 1)
  			return tag.iterator().next();
  		else
  			return null;
  	}
docs: Deprecated - use channel.getTag instead
  
  Return the Tag object with name <tt>tagName</tt> if it exists on the
  channel <tt>channel</tt> else return null
  
  @param channel - channel
  @param tagName - tag name
  @return Tag - tag object found on channel