Python GraphQL query with datetime variables

I’m trying to make a post request to a GraphQL API using Python3 and would like some parts of the query to be variables, without doing strange string manipulations with pasting.

A good solution was something like this:

import requests 

body = """
   query ($first: Int, $occurredAtMin: DateTime){
    app(id: "abc123") {
      events(
        first: $first
        occurredAtMin: $occurredAtMin
      ) {
          edges {
            node {
              type
              occurredAt
            }
          }
      }
    }
  }
"""

variables = {"first": 10, "occuredAtMin": "2023-09-05T14:23:47.00Z"}
resp = requests.post(url = url, json = {"query": body, "variables": variables}, headers=headers)
resp.json()

This seems to works fine for almost all variables, but I can’t make it work with the DateTime type (occuredAtMin variable).

Is there some elegant way to solve this?

I could just paste it as a string and it would work, but I would like to solve it in some nicer way.