code: func (args Args) FuzzyMatch(key, source string) bool {
  	if args.ExactMatch(key, source) {
  		return true
  	}
  
  	fieldValues := args.fields[key]
  	for prefix := range fieldValues {
  		if strings.HasPrefix(source, prefix) {
  			return true
  		}
  	}
  	return false
  }
docs: // FuzzyMatch returns true if the source matches exactly one value,  or the
  // source has one of the values as a prefix.