def pause_endpoint(params):
    """
    Pauses a Hugging Face endpoint using the provided parameters.

    Args:
        params (dict or object): Parameters containing the token required for authorization.
            If a dictionary is provided, it should have a key "token" with the authorization token.
            If an object is provided, it should have an attribute `token` with the authorization token.

    Returns:
        dict: The JSON response from the API call to pause the endpoint.

    Raises:
        KeyError: If the "token" key is missing in the params dictionary.
        requests.exceptions.RequestException: If there is an issue with the API request.

    Environment Variables:
        ENDPOINT_ID: Should be set to the endpoint identifier in the format "username/project_name".
    """
    if isinstance(params, dict):
        token = params["token"]
    else:
        token = params.token
    endpoint_id = os.environ["ENDPOINT_ID"]
    username = endpoint_id.split("/")[0]
    project_name = endpoint_id.split("/")[1]
    api_url = f"https://api.endpoints.huggingface.cloud/v2/endpoint/{username}/{project_name}/pause"
    headers = {"Authorization": f"Bearer {token}"}
    r = requests.post(api_url, headers=headers, timeout=120)
    return r.json()

    Pauses a Hugging Face endpoint using the provided parameters.

    Args:
        params (dict or object): Parameters containing the token required for authorization.
            If a dictionary is provided, it should have a key "token" with the authorization token.
            If an object is provided, it should have an attribute `token` with the authorization token.

    Returns:
        dict: The JSON response from the API call to pause the endpoint.

    Raises:
        KeyError: If the "token" key is missing in the params dictionary.
        requests.exceptions.RequestException: If there is an issue with the API request.

    Environment Variables:
        ENDPOINT_ID: Should be set to the endpoint identifier in the format "username/project_name".
    
src/autotrain/trainers/common.py