Add files to model request body

[invissiblecat]

I want to upload some files with model instance creation. According to the examples, I think the full request body should look something like this:

@requestBody({
   content: {
    'application/json': {
      schema: getModelSchemaRef(Ido, {
        title: 'NewIdo',
        exclude: ['id'],
        includeRelations: true,
      }),
    },
    'multipart/form-data': {
      'x-parser': 'stream',
      schema: {
        type: 'object',
        properties: {
          logo: {type: 'object'},
          banner: {type: 'object'},
          tokenLogo: {type: 'object'},
        },
      },
    },
  },
})
ido: Omit<Ido, 'id'> & Response

There is a thing that is not clear to me: what exactly should I pass to these 'multipart/form-data' fields of type object? While using @requestBody.file() there is a binary string nedeed. Do I also need to declare image fields as string and expect binary strings?