ShaulEngler

https://json-schema.org/draft/2019-09/json-schema-core.html#rfc.section.9.3.2.5 the spec references propertyNames as any other JSON Schema pattern included, no limitations applied to it. also can see this discussion: https://github.com/json-schema-org/json-schema-org.github.io/issues/77 which actively uses pattern as a suggested...