feat: Allow passing list of fields to unwind parameter (#256)

We're adding an option to unwind multiple fields when listing the
dataset items. This adds an option to DatasetClient to pass those
multiple fields in the unwind parameter.

CHANGELOG.md

@@ -2,9 +2,10 @@
 
 ## [1.7.2](../../releases/tag/v1.7.2) - Unreleased
 
-### Add
+### Added
 
 - add `headers_template` kwarg to webhook create and update
+- allow passing list of fields to `unwind` parameter in dataset item listing endpoints
 
 ## [1.7.1](../../releases/tag/v1.7.1) - 2024-07-11
 

src/apify_client/clients/resource_clients/dataset.py

@@ -66,7 +66,8 @@ def list_items(
         desc: bool | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_hidden: bool | None = None,
         flatten: list[str] | None = None,
@@ -89,7 +90,8 @@ def list_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -145,7 +147,8 @@ def iterate_items(
         desc: bool | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_hidden: bool | None = None,
     ) -> Iterator[dict]:
@@ -166,7 +169,8 @@ def iterate_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -225,7 +229,8 @@ def download_items(
         delimiter: str | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_header_row: bool | None = None,
         skip_hidden: bool | None = None,
@@ -258,7 +263,8 @@ def download_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -312,7 +318,8 @@ def get_items_as_bytes(
         delimiter: str | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_header_row: bool | None = None,
         skip_hidden: bool | None = None,
@@ -343,7 +350,8 @@ def get_items_as_bytes(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -401,7 +409,8 @@ def stream_items(
         delimiter: str | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_header_row: bool | None = None,
         skip_hidden: bool | None = None,
@@ -431,7 +440,8 @@ def stream_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -557,7 +567,8 @@ async def list_items(
         desc: bool | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_hidden: bool | None = None,
         flatten: list[str] | None = None,
@@ -580,7 +591,8 @@ async def list_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -636,7 +648,8 @@ async def iterate_items(
         desc: bool | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_hidden: bool | None = None,
     ) -> AsyncIterator[dict]:
@@ -657,7 +670,8 @@ async def iterate_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -717,7 +731,8 @@ async def get_items_as_bytes(
         delimiter: str | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_header_row: bool | None = None,
         skip_hidden: bool | None = None,
@@ -748,7 +763,8 @@ async def get_items_as_bytes(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,
@@ -806,7 +822,8 @@ async def stream_items(
         delimiter: str | None = None,
         fields: list[str] | None = None,
         omit: list[str] | None = None,
-        unwind: str | None = None,
+        unwind: str | list[str] | None = None,  # TODO: change to list[str] only when doing a breaking release
+                                                # https://github.com/apify/apify-client-python/issues/255
         skip_empty: bool | None = None,
         skip_header_row: bool | None = None,
         skip_hidden: bool | None = None,
@@ -836,7 +853,8 @@ async def stream_items(
                 Note that the fields in the outputted items are sorted the same way as they are specified in the fields parameter.
                 You can use this feature to effectively fix the output format.
             omit (list of str, optional): A list of fields which should be omitted from the items.
-            unwind (str, optional): Name of a field which should be unwound.
+            unwind (str or list of str, optional): A list of fields which should be unwound, in order which they should be processed.
+                Each field should be either an array or an object.
                 If the field is an array then every element of the array will become a separate record and merged with parent object.
                 If the unwound field is an object then it is merged with the parent object.
                 If the unwound field is missing or its value is neither an array nor an object and therefore cannot be merged with a parent object,