docs: def validate(self, uri):
  		""" Check an URI for compatibility with this specification. Return True if the URI is compatible.
  
  		:param uri: an URI to check
  
  		:return: bool
  		"""
  		requirement = self.requirement()
  		uri_component = uri.component(self.component())
  
  		if uri_component is None:
  			return requirement != WURIComponentVerifier.Requirement.required
  		if requirement == WURIComponentVerifier.Requirement.unsupported:
  			return False
  
  		re_obj = self.re_obj()
  		if re_obj is not None:
  			return re_obj.match(uri_component) is not None
  		return True