# xarray.register_datatree_accessor

### xarray.register_datatree_accessor(name)[[source]](https://github.com/pydata/xarray/blob/main/xarray/core/extensions.py#L127-L141)

Register a custom accessor on DataTree objects.

* **Parameters:**
  **name** ([`str`](https://docs.python.org/3/builtins/stdtypes.html#str)) – Name under which the accessor should be registered. A warning is issued
  if this name conflicts with a preexisting attribute.

#### SEE ALSO
[`xarray.register_dataarray_accessor`](xarray.register_dataarray_accessor.html.md#xarray.register_dataarray_accessor), [`xarray.register_dataset_accessor`](xarray.register_dataset_accessor.html.md#xarray.register_dataset_accessor)