How to build JSON from remote Swagger documentation (websocket based API) - python-3.x

Question

I am currently grabbing the entire swagger.json contents:
swagger_link = "https://<SWAGGER_URL>/swagger/v1/swagger.json"
swagger_link_contents = requests.get(swagger_link)
#write the returned swagger to a file
swagger_return = swagger_link_contents.json()
with open ("swagger_raw.json", "w") as f:
f.write(json.dumps(swagger_return, indent=4))
The file is filled with beautiful JSON now. But there are a ton of objects in there, quite a few I don't need. Say I wanted to grab the command "UpdateCookieCommand" from my document:
"parameters": [
{
"name": "command",
"in": "body",
"required": true,
"schema": {
"$ref": "#/definitions/UpdateCookieCommand"
},
"x-nullable": false
}
],
but it also has additional mentions later in the document...
UpdateCookieCommand": {
"allOf": [
{
"$ref": "#/definitions/BaseCommand"
},
{
"type": "object",
"required": [
"command",
"id"
],
The latter object is really what I want to take from the document. It tells me what's required for a nominal API command to Update a Cookie. The hope is I could have a script that will look at every release and be able to absorb changes of the swagger and build new commands.
What methodology would you all recommend to accomplish this? I considered making subprocess Linux commands to just awk, sed, grep it to what I want but maybe there's a more elegant way? Also I won't know the amount of lines or location of anything as a new Swagger will be produced each release and my script will need to automatically run with a CI/CD pipeline.