"""Amazon STS connector."""

from functools import cache

import boto3
from mypy_boto3_sts.client import STSClient


@cache
def get_sts_client() -> STSClient:
    """Connect to STS.

    Connect to STS via AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY env vars

    Returns:
          STSClient: Client object provides access to sts.
    """
    return boto3.client("sts")