In order to basically separating regular diagrams from full‑scale ones which is something that Capital does not support directly through the REST API or Web Services.
So, one way to get around this limitation is to get specific diagrams just by using their names. So one approach we could take is, take Harness Diagrams that starts with "FB_" as full-scale diagrams and consider every other one as engineering drawing.
Below is a Postman example: