credentials definition in the schema

[amirjalali65]

I'm using generated swagger client in python. Keep getting AttributeError: 'bool' object has no attribute 'items' when exporting/retrieving assets and services. The problem was resolved when I filtered for all the attributes except for credentials.
It seems credentials definition is wrong in the schema:

        credentials:
          type: object
          additionalProperties:
            type: string
            additionalProperties:
              type: boolean

additionalProperties should have object type.