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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_authorization_endpoint(missing_redirect_uri, authorization_endpoint_uri, authorization_template_name):
 """ Returns a endpoint that handles OAuth authorization requests. The template described by ``authorization_template_name`` is rendered with a Django ``RequestContext`` with the following variables: * ``form``: a Django ``Form`` that may hold data internal to the ``djoauth2`` application. * ``client``: The :py:class:`djoauth2.models.Client` requesting access to the user's scopes. * ``scopes``: A list of :py:class:`djoauth2.models.Scope`, one for each of the scopes requested by the client. * ``form_action``: The URI to which the form should be submitted -- use this value in the ``action=""`` attribute on a ``<form>`` element. :param missing_redirect_uri: a string, the URI to which to redirect the user when the request is made by a client without a valid redirect URI. :param authorization_endpoint_uri: a string, the URI of this endpoint. Used by the authorization form so that the form is submitted to this same endpoint. :param authorization_template_name: a string, the name of the template to render when handling authorization requests. :rtype: A view function endpoint. """

  @login_required
  @require_http_methods(['GET', 'POST'])
  def authorization_endpoint(request):
    auth_code_generator = AuthorizationCodeGenerator(missing_redirect_uri)

    try:
      auth_code_generator.validate(request)
    except AuthorizationError as authorization_error:
      return auth_code_generator.make_error_redirect(authorization_error)

    if request.method == 'GET':
      return render(request, authorization_template_name, {
          'form': Form(),
          'client': auth_code_generator.client,
          'scopes': auth_code_generator.valid_scope_objects,
          'form_action': update_parameters(
              authorization_endpoint_uri,
              auth_code_generator.get_request_uri_parameters(as_dict=True)),
        })

    if request.method == 'POST':
      form = Form(request)
      if form.is_valid() and request.POST.get('user_action') == 'Accept':
        return auth_code_generator.make_success_redirect()
      else:
        return auth_code_generator.make_error_redirect()

  return authorization_endpoint