# xarray.backends.BackendArray

### *class* xarray.backends.BackendArray[[source]](https://github.com/pydata/xarray/blob/main/xarray/backends/common.py#L311-L324)

#### \_\_init_\_()

### Methods

| [`__init__`](#xarray.backends.BackendArray.__init__)()   |    |
|---------------------------------------------------------------|----|
| `async_get_duck_array`([dtype])                               |    |
| `async_getitem`(key)                                          |    |
| `get_duck_array`([dtype])                                     |    |

### Attributes

| `ndim`   | Number of array dimensions.      |
|----------|----------------------------------|
| `size`   | Number of elements in the array. |