# xarray.DataTree.chunksizes

#### *property* DataTree.chunksizes

Mapping from group paths to a mapping of chunksizes.

If there’s no chunked data in a group, the corresponding mapping of chunksizes will be empty.

Cannot be modified directly, but can be modified by calling .chunk().

#### SEE ALSO
[`DataTree.chunk`](xarray.DataTree.chunk.html.md#xarray.DataTree.chunk), [`Dataset.chunksizes`](xarray.Dataset.chunksizes.html.md#xarray.Dataset.chunksizes)