modelTemplateRename always responds with "unsupported action"

[jojo259]

Seems to also apply to modelTemplateAdd and modelTemplateRename (potentially others too).

import requests

response = requests.post('http://localhost:8765', json = {
	'action': 'modelTemplateRename',
	'version': 6,
	'params': {
		'modelName': 'Basic',
		'oldTemplateName': 'Card 1',
		'newTemplateName': 'Card 1 renamed'
	}
})

print(response.text)

curl -X POST -H "Content-Type: application/json" -d "{\"action\": \"modelTemplateRename\", \"version\": 6, \"params\": {\"modelName\": \"Basic\", \"oldTemplateName\": \"Card 1\", \"newTemplateName\": \"Card 1 renamed\"}}" http://localhost:8765

Always results in {"result": null, "error": "unsupported action"} no matter which versions, model names, or template names I use and the same applies to the other two actions.

Line of code with that string: https://github.com/FooSoft/anki-connect/blob/master/plugin/__init__.py#L128