Failures per graph node over a window, and the weakest link

curl --request GET \
  --url https://api.sempera.org/v1/test-analytics \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.sempera.org/v1/test-analytics"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.sempera.org/v1/test-analytics', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "window": {
    "since": "<string>",
    "until": "<string>",
    "days": 123
  },
  "min_samples": 123,
  "nodes": [
    {
      "node": "<string>",
      "visits": 123,
      "failures": 123,
      "by_source": {},
      "rate": 123,
      "sufficient": true
    }
  ],
  "weakest": {
    "node": "<string>",
    "visits": 123,
    "failures": 123,
    "by_source": {},
    "rate": 123,
    "sufficient": true
  },
  "attempts": 123,
  "sets": 123,
  "excluded_unreadable": 123,
  "excluded_unattributed_attempts": 123,
  "sources": {
    "counted": {},
    "not_counted": [
      "<string>"
    ]
  },
  "object": "test_analytics",
  "agent_id": "<string>"
}

{
  "error": {
    "code": "AGENT_ENV_UNPINNED",
    "message": "<string>",
    "request_id": "<string>",
    "field": "<string>",
    "scope": "<string>",
    "reason": "<string>"
  }
}

{
  "error": {
    "code": "AGENT_ENV_UNPINNED",
    "message": "<string>",
    "request_id": "<string>",
    "field": "<string>",
    "scope": "<string>",
    "reason": "<string>"
  }
}

{
  "error": {
    "code": "AGENT_ENV_UNPINNED",
    "message": "<string>",
    "request_id": "<string>",
    "field": "<string>",
    "scope": "<string>",
    "reason": "<string>"
  }
}

{
  "error": {
    "code": "AGENT_ENV_UNPINNED",
    "message": "<string>",
    "request_id": "<string>",
    "field": "<string>",
    "scope": "<string>",
    "reason": "<string>"
  }
}

{
  "error": {
    "code": "AGENT_ENV_UNPINNED",
    "message": "<string>",
    "request_id": "<string>",
    "field": "<string>",
    "scope": "<string>",
    "reason": "<string>"
  }
}

{
  "error": {
    "code": "AGENT_ENV_UNPINNED",
    "message": "<string>",
    "request_id": "<string>",
    "field": "<string>",
    "scope": "<string>",
    "reason": "<string>"
  }
}