code: def get_tenant(self, tenant_id):
          
          route_values = {}
          if tenant_id is not None:
              route_values['tenantId'] = self._serialize.url('tenant_id', tenant_id, 'str')
          response = self._send(http_method='GET',
                                location_id='5f0a1723-2e2c-4c31-8cae-002d01bdd592',
                                version='5.0-preview.1',
                                route_values=route_values)
          return self._deserialize('TenantInfo', response)
docs: GetTenant.
          [Preview API]
          :param str tenant_id:
          :rtype: :class:`<TenantInfo> <azure.devops.v5_0.identity.models.TenantInfo>`