How to add application/merge-patch+json to ContentType enum and handle in generated client

[7amou3]

Hello!

I'm currently using swagger-typescript-api to generate my API client from an OpenAPI 3.0 document. I have a PATCH endpoint with a requestBody defined as follows:

  content:
    application/merge-patch+json:
      schema:
        $ref: '#/components/schemas/BookViewModel'

When the client is generated, the contentType for this request defaults to ContentType.Json, as shown in the generated code snippet below:

registriesPatch: (id: string, data: RegistryInput, params: RequestParams = {}) =>
  this.request<RegistryView, HttpValidationProblemDetails | ProblemDetails>({
    path: `/api/v1/registries/${id}`,
    method: 'PATCH',
    body: data,
    secure: true,
    type: ContentType.Json, // <--- This is ContentType.Json
    format: 'json',
    ...params,
  }),

I would like the generated client to either include application/merge-patch+json as a distinct value in the ContentType enum (e.g., ContentType.MergePatchJson).
What is the recommended approach to achieve this customization?

Thank you!