transform_copy

Type: Transform

Copies field values between common and item dimensions.

Parameters

Name	Type	Required	Default	Description
direction	string	Yes	-	Copy direction: "common_to_item", "item_to_common", "common_to_common", or "item_to_item".

Field	Typical Usage
CommonInput	`[<source_fields...>]`
CommonOutput	`[<target_field>] (collects all item values into a list)`
ItemInput	`[<source_field>]`
ItemOutput	`[<target_fields...>]`

flow.transform_copy(
    direction=...,
    common_input=[...],
    item_input=[...],
    item_output=[...],
)