# File lib/uri_template/colon.rb, line 148
  def self.try_convert(x)
    if x.kind_of? String
      return new(x)
    elsif x.kind_of? self
      return x
    elsif x.kind_of? URITemplate::RFC6570 and x.level == 1
      return new( x.pattern.gsub(/\{(.*?)\}/u){ "{:#{$1}}" } )
    else
      return nil
    end
  end