patch https://fhir-api.zapehr.com/r4b/OperationDefinition/
OperationDefinition on the FHIR specification website.
A formal computable definition of an operation (on the RESTful interface) or a named query (using the search interaction).
The body should be a list of valid JSON patches for OperationDefinition. For example, to update a Slot status to busy, this would be the body:
[
{
op: 'replace',
path: '/status',
value: 'busy',
},
],