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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def make_request( ins, method, url, stripe_account=None, params=None, headers=None, **kwargs ):
 """ Return a deferred or handle error. For overriding in various classes. """

    if txstripe.api_key is None:
        raise error.AuthenticationError(
            'No API key provided. (HINT: set your API key using '
            '"stripe.api_key = <API-KEY>"). You can generate API keys '
            'from the Stripe web interface.  See https://stripe.com/api '
            'for details, or email support@stripe.com if you have any '
            'questions.')

    abs_url = '{}{}'.format(txstripe.api_base, url)

    ua = {
        'lang': 'python',
        'publisher': 'lextoumbourou',
        'httplib': 'Twisted',
    }

    headers = headers or {}
    headers.update({
        'X-Stripe-Client-User-Agent': util.json.dumps(ua),
        'User-Agent': 'txstripe',
        'Authorization': 'Bearer %s' % (txstripe.api_key,)
    })

    if stripe_account:
        headers['Stripe-Account'] = stripe_account

    if txstripe.api_version is not None:
        headers['Stripe-Version'] = txstripe.api_version

    if method == 'get' or method == 'delete':
        data = None
    elif method == 'post':
        data = {k: v for (k, v) in _api_encode(params)}
        params = None
    else:
        raise error.APIConnectionError(
            'Unrecognized HTTP method %r.  This may indicate a bug in the '
            'Stripe bindings.' % (method,))

    resp = yield treq.request(
        method, abs_url, params=params, data=data, headers=headers, **kwargs)

    if resp.code >= 400:
        yield util.handle_api_error(resp)
        return

    body = yield resp.json()

    defer.returnValue(
        convert_to_stripe_object(
            body, txstripe.api_key, stripe_account))