Services for generating data according to a given scheme for API testing?

Question

API

I have seen many services with fake api and data. Are there any that do data according to my requirements?
for example

{
  "author": "",
  "content": {
    "text": "",
    "image": ""
  }
}

And the service generates data according to this scheme.

Answer 1

https://github.com/joke2k/faker

Answer 2

I used it for a long time, but it seems to be what you need