code: def access_with_service(self, service, use_xarray=None):
          
          service = CaseInsensitiveStr(service)
          if service == 'CdmRemote':
              if use_xarray:
                  from .cdmr.xarray_support import CDMRemoteStore
                  try:
                      import xarray as xr
                      provider = lambda url: xr.open_dataset(CDMRemoteStore(url))  # noqa: E731
                  except ImportError:
                      raise ImportError('CdmRemote access needs xarray to be installed.')
              else:
                  from .cdmr import Dataset as CDMRDataset
                  provider = CDMRDataset
          elif service == 'OPENDAP':
              if use_xarray:
                  try:
                      import xarray as xr
                      provider = xr.open_dataset
                  except ImportError:
                      raise ImportError('xarray to be installed if `use_xarray` is True.')
              else:
                  try:
                      from netCDF4 import Dataset as NC4Dataset
                      provider = NC4Dataset
                  except ImportError:
                      raise ImportError('OPENDAP access needs netCDF4-python to be installed.')
          elif service in self.ncssServiceNames:
              from .ncss import NCSS
              provider = NCSS
          elif service == 'HTTPServer':
              provider = session_manager.urlopen
          else:
              raise ValueError(service + ' is not an access method supported by Siphon')
  
          try:
              return provider(self.access_urls[service])
          except KeyError:
              raise ValueError(service + ' is not available for this dataset')
docs: Access the dataset using a particular service.
  
          Return an Python object capable of communicating with the server using the particular
          service. For instance, for 'HTTPServer' this is a file-like object capable of
          HTTP communication; for OPENDAP this is a netCDF4 dataset.
  
          Parameters
          ----------
          service : str
              The name of the service for accessing the dataset
  
          Returns
          -------
              An instance appropriate for communicating using ``service``.