Swashbuckle Remote definitions from a jsonschema file

How can I use remote definitions in aspnet core 2.0 with swashbuckle? I need to import the json file (schema) to create the definitions in the swagger.json file

Example swagger.json:

definitions:
  response:
    $ref: "https://localhost/domains/jsonschema#/definitions/response"

How to do it in swashbuckle for .net core 2.0 with c#?

Reference: https://docs.microsoft.com/en-us/aspnet/core/tutorials/getting-started-with-swashbuckle?view=aspnetcore-2.1&tabs=visual-studio-code%2Cvisual-studio-code-xml