fix mypy and readthedocs

src/zarr/api/synchronous.py

@@ -985,7 +985,7 @@ def from_array(
         - dict[str, JSON]: A dict representation of an ``ArrayBytesCodec``.
         - ArrayBytesCodec: An instance of ``ArrayBytesCodec``.
         - "auto": a default serializer will be used. These defaults can be changed by modifying the value of
-         ``array.v3_default_serializer`` in :mod:`zarr.core.config`.
+          `array.v3_default_serializer` in :mod:`zarr.core.config`.
         - "keep": Retain the serializer of the input array if it is a zarr Array.
     fill_value : Any, optional
         Fill value for the array.

src/zarr/core/array.py

@@ -3834,7 +3834,7 @@ async def from_array(
         - dict[str, JSON]: A dict representation of an ``ArrayBytesCodec``.
         - ArrayBytesCodec: An instance of ``ArrayBytesCodec``.
         - "auto": a default serializer will be used. These defaults can be changed by modifying the value of
-         ``array.v3_default_serializer`` in :mod:`zarr.core.config`.
+          `array.v3_default_serializer`` in :mod:`zarr.core.config`.
         - "keep": Retain the serializer of the input array if it is a zarr Array.
 
     fill_value : Any, optional
@@ -3998,9 +3998,7 @@ async def _copy_array_region(chunk_coords: ChunkCoords | slice, _data: Array) ->
             )
         else:
 
-            async def _copy_arraylike_region(
-                chunk_coords: ChunkCoords | slice, _data: NDArrayLike
-            ) -> None:
+            async def _copy_arraylike_region(chunk_coords: slice, _data: NDArrayLike) -> None:
                 await new_array.setitem(chunk_coords, _data[chunk_coords])
 
             # Stream data from the source array to the new array

tests/test_array.py

@@ -1276,14 +1276,19 @@ async def test_creation_from_other_zarr_format(
     src_format: ZarrFormat,
     new_format: ZarrFormat,
 ) -> None:
-    kwargs: dict[str, tuple[Literal["default"], Literal[".", "/"]] | Literal[".", "/"]] = {}
-    # set dimension_separator to non default
     if src_format == 2:
-        kwargs["dimension_separator"] = "/"
+        src = zarr.create(
+            (50, 50), chunks=(10, 10), store=store, zarr_format=src_format, dimension_separator="/"
+        )
     else:
-        kwargs["chunk_key_encoding"] = ("default", ".")
+        src = zarr.create(
+            (50, 50),
+            chunks=(10, 10),
+            store=store,
+            zarr_format=src_format,
+            chunk_key_encoding=("default", "."),
+        )
 
-    src = zarr.create((50, 50), chunks=(10, 10), store=store, zarr_format=src_format, **kwargs)
     src[:] = np.arange(50 * 50).reshape((50, 50))
     result = zarr.from_array(
         src,