Invalid Swagger doc: "required" in properties should be array of strings

[biltongza]

I am trying to use NSwag to build a C# client for the Lightroom API off of the swagger doc in this repository. It is unhappy with the path paths['/v2/catalogs/{catalog_id}/assets/{asset_id}'].put.parameters[4].schema.properties.payload.properties.captureDate.required:

lightroom-partner-apis/docs/api/LightroomPartnerAPIsSpec.json

Line 597 in 643d494

"required": true,

According to the OpenAPI 2.0 spec, this required field should actually be an array of strings. The schema object is defined here: https://swagger.io/specification/v2/#schemaObject which references the Json Schema Validation spec here: https://tools.ietf.org/html/draft-fge-json-schema-validation-00#page-12 which says:

5.4.3. required

5.4.3.1. Valid values

The value of this keyword MUST be an array. This array MUST have at
least one element. Elements of this array MUST be strings, and MUST
be unique.

I'm not sure how an array of strings for a "required" field is useful to anybody, but technically, the document is invalid according to the spec.