docs: def conceptscheme_from_uri(conceptscheme_uri, **kwargs):
      '''
      Read a SKOS Conceptscheme from a :term:`URI`
  
      :param string conceptscheme_uri: URI of the conceptscheme.
      :rtype: skosprovider.skos.ConceptScheme
      '''
  
      # get the conceptscheme
      # ensure it only ends in one slash
      conceptscheme_uri = conceptscheme_uri.strip('/') + '/'
      s = kwargs.get('session', requests.Session())
      graph = uri_to_graph('%s.rdf' % (conceptscheme_uri), session=s)
  
      notes = []
      labels = []
      if graph is not False:
          for s, p, o in graph.triples((URIRef(conceptscheme_uri), RDFS.label, None)):
              label = Label(o.toPython(), "prefLabel", 'en')
              labels.append(label)
  
      conceptscheme = ConceptScheme(
          conceptscheme_uri,
          labels=labels,
          notes=notes
      )
      return conceptscheme