Breaking change: Promote `singer_sdk.helpers.typing` to `singer_sdk.typing`
The typing
classes are becoming crucial components of a tap developer's experience on the SDK. For this reason, we should promote singer_sdk.helpers.typing
to simply singer_sdk.typing
, which indicates to the developer that this is a first-level module in the SDK itself.
As a one-time breaking change, developers will need to "replace all" in their existing codebase to correctly reference the updated module location.