Change the xml serializer so that ‘?’s are stripped from attribute names. This makes it possible to serialize methods that end in a question mark, like ‘valid?’ or ‘is_true?’
Strips ‘?’ from serialized method names
# File lib/restfulx/rx_active_record.rb, line 308 def add_tag(attribute) builder.tag!( dasherize? ? attribute.display_name.dasherize : attribute.display_name, attribute.value.to_s, attribute.decorations(!options[:skip_types]) ) end