class Grape::API::Instance

def without_versioning(&_block)

used by the rest of your API.
Allows definition of endpoints that ignore the versioning configuration 
def without_versioning(&_block)
  old_version = self.class.namespace_inheritable(:version)
  old_version_options = self.class.namespace_inheritable(:version_options)
  self.class.namespace_inheritable_to_nil(:version)
  self.class.namespace_inheritable_to_nil(:version_options)
  yield
  self.class.namespace_inheritable(:version, old_version)
  self.class.namespace_inheritable(:version_options, old_version_options)
end