The configuration discusses an idp setting under the sp section with the description:

Defines the set of IdPs that this SP is allowed to use; if unset, all listed IdPs may be used. If set, then the value is expected to be a list with entity identifiers for the allowed IdPs.

As far as I've been able to see this option is unused inside of pysaml2.

Code Version

db417d8

Expected Behavior

This option is removed from the configuration documentation or is used.

Current Behavior

The option is unused.

Possible Solution

🤷