create_ach_relationship_for_account requires a single account_id?

[RayOconnor]

Hello,

I am an engineer building an integration between plaid and alpaca.
I noticed that a plaid public token, and the processor token that it is exchanged for, can apply to multiple bank accounts.

It is strange then, that the create_ach_relationship_for_account function in the python sdk requires that a single ach relationship be formed at a time, requiring numerous calls to the alpaca api. I could understand requiring an integrating partner to be explicit about what subset of accounts that a processor token grants access to to form an ach relationship for, but it seems strange to require numerous subsequent network requests.

Let me know if I am confused or misunderstanding the intended usage of these different systems.

Best,
Ray