code: def create_entry(group, name, timestamp, **attributes):
      
      # create group using low-level interface to store creation order
      from h5py import h5p, h5g, _hl
      try:
          gcpl = h5p.create(h5p.GROUP_CREATE)
          gcpl.set_link_creation_order(
              h5p.CRT_ORDER_TRACKED | h5p.CRT_ORDER_INDEXED)
      except AttributeError:
          grp = group.create_group(name)
      else:
          name, lcpl = group._e(name, lcpl=True)
          grp = _hl.group.Group(h5g.create(group.id, name, lcpl=lcpl, gcpl=gcpl))
      set_uuid(grp, attributes.pop("uuid", None))
      set_attributes(grp,
                     timestamp=convert_timestamp(timestamp),
                     **attributes)
      return grp
docs: Create a new ARF entry under group, setting required attributes.
  
      An entry is an abstract collection of data which all refer to the same time
      frame. Data can include physiological recordings, sound recordings, and
      derived data such as spike times and labels. See add_data() for information
      on how data are stored.
  
      name -- the name of the new entry. any valid python string.
  
      timestamp -- timestamp of entry (datetime object, or seconds since
                 January 1, 1970). Can be an integer, a float, or a tuple
                 of integers (seconds, microsceconds)
  
      Additional keyword arguments are set as attributes on created entry.
  
      Returns: newly created entry object