PrototypeOpen Learning Feed is a concept in development. The sample API and validator work, but no school publishes a feed yet, and examples use a fictional school.
Open Learning Feed

olf:appliesToLevel

OLF extensionProperty

Credential level the price applies to when one price list covers several levels.

Defined by
The OLF extension. How olf relates to schema.org
Used on
olf:TuitionPriceSpecification
Expects
DefinedTerm, Text

Example

example
{
  "olf:appliesToLevel": "master"
}

The example feed doesn't use this term, so this snippet shows how it would look.

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