Decoding error (type mismatch)

Hello! First of all thank you for such a great tool.

Here is a snippet of an openapi scheme that is generated by my asp net web api that causes an error:

openapi: 3.0.1
info:
  title: ParkingMobileApi
  version: '1.0'
paths:
  /api/paymentmethod/list:
    post:
      tags:
        - ParkingMobile
      responses:
        '200':
          description: Success
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/PaymentMethodsViewModel'
            application/json:
              schema:
                $ref: '#/components/schemas/PaymentMethodsViewModel'
            text/json:
              schema:
                $ref: '#/components/schemas/PaymentMethodsViewModel'
components:
  schemas:
    BankCardStatusViewModel:
      required:
        - pan
        - recurringId
      type: object
      properties:
        recurringId:
          type: string
        pan:
          type: string
      additionalProperties: false
    PaymentMethodsViewModel:
      type: object
      properties:
        sbpSubscriptions:
          type: array
          items:
            $ref: '#/components/schemas/SbpSubscriptionStatusViewModel'
          nullable: true
        bankCards:
          type: array
          items:
            $ref: '#/components/schemas/BankCardStatusViewModel'
          nullable: true
      additionalProperties: false
    SbpSubscriptionStatusViewModel:
      required:
        - bankName
        - subscriptionId
      type: object
      properties:
        subscriptionId:
          type: string
        bankName:
          type: string
      additionalProperties: false
  securitySchemes:
    Bearer:
      type: http
      description: Please insert JWT token into field
      scheme: bearer
      bearerFormat: JWT
security:
  - Bearer: [ ]

And when I make an api call I receive an error:

Client error - operationID: post/api/paymentmethod/list, operationInput: Input(path: authtest.Operations.post_api_paymentmethod_list.Input.Path(), query: authtest.Operations.post_api_paymentmethod_list.Input.Query(), headers: authtest.Operations.post_api_paymentmethod_list.Input.Headers(accept: [OpenAPIRuntime.AcceptHeaderContentType<authtest.Operations.post_api_paymentmethod_list.AcceptableContentType>(contentType: authtest.Operations.post_api_paymentmethod_list.AcceptableContentType.json, quality: OpenAPIRuntime.QualityValue(thousands: 1000))]), cookies: authtest.Operations.post_api_paymentmethod_list.Input.Cookies(), body: nil), request: path: /api/paymentmethod/list, query: <nil>, method: HTTPMethod(value: OpenAPIRuntime.HTTPMethod.(unknown context at $104b797e8).OpenAPIHTTPMethod.POST), header fields: [accept: application/json], body (prefix): <nil>, baseURL: http://192.168.24.54:6044, response: status: 200, header fields: [Server: Kestrel, Content-Type: application/json; charset=utf-8, Transfer-Encoding: Identity, Date: Mon, 28 Aug 2023 02:43:31 GMT], body: [], underlying error: DecodingError: typeMismatch Dictionary<String, Any> - at : Expected to decode Dictionary<String, Any> but found an array instead. (underlying error: <nil>)

Just in case, my underlying c# class:

    public class PaymentMethodsViewModel
    {
        public IEnumerable<SbpSubscriptionStatusViewModel> SbpSubscriptions { get; set; }

        public IEnumerable<BankCardStatusViewModel> BankCards { get; set; }
    }

Is my scheme not correct? Or this might be a bug?

Thank you!

apple / swift-openapi-generator

Decoding error (type mismatch) #220