Need help on rest api for creating a report

Try sample on below

import requests
import json

# Replace these variables with your Azure DevOps organization and personal access token
organization = 'yourorganization'
pat = 'yourpat'
project = 'yourproject'

# Base URL for Azure DevOps REST API
base_url = f'https://dev.azure.com/{organization}/{project}/_apis/'

# Headers for the request
headers = {
    'Content-Type': 'application/json',
    'Authorization': f'Basic {pat}'
}

# Function to get releases
def get_releases():
    url = f'{base_url}release/releases?api-version=7.1-preview.6'
    response = requests.get(url, headers=headers)
    return response.json()

# Function to get work items related to a release
def get_work_items(release_id):
    url = f'{base_url}release/releases/{release_id}/workitems?api-version=7.1-preview.6'
    response = requests.get(url, headers=headers)
    return response.json()

# Get all releases
releases = get_releases()

# Extract release IDs and related work items
report = []
for release in releases['value']:
    release_id = release['id']
    work_items = get_work_items(release_id)
    report.append({
        'release_id': release_id,
        'work_items': work_items['value']
    })

# Save the report to a JSON file
with open('release_report.json', 'w') as f:
    json.dump(report, f, indent=4)

print('Report generated successfully!')