How to use the oauthlib.common.add_params_to_uri function in oauthlib

# error and MUST NOT automatically redirect the user-agent to the
        # invalid redirection URI.
        except errors.FatalClientError as e:
            log.debug('Fatal client error during validation of %r. %r.',
                      request, e)
            raise

        # If the resource owner denies the access request or if the request
        # fails for reasons other than a missing or invalid redirection URI,
        # the authorization server informs the client by adding the following
        # parameters to the fragment component of the redirection URI using the
        # "application/x-www-form-urlencoded" format, per Appendix B:
        # https://tools.ietf.org/html/rfc6749#appendix-B
        except errors.OAuth2Error as e:
            log.debug('Client error during validation of %r. %r.', request, e)
            return {'Location': common.add_params_to_uri(request.redirect_uri, e.twotuples,
                                                         fragment=True)}, None, 302

        # In OIDC implicit flow it is possible to have a request_type that does not include the access_token!
        # "id_token token" - return the access token and the id token
        # "id_token" - don't return the access token
        if "token" in request.response_type.split():
            token = token_handler.create_token(request, refresh_token=False, save_token=False)
        else:
            token = {}

        for modifier in self._token_modifiers:
            token = modifier(token, token_handler, request)

        # In OIDC implicit flow it is possible to have a request_type that does
        # not include the access_token! In this case there is no need to save a token.
        if "token" in request.response_type.split():

def prepare_bearer_uri(token, uri):
    """Add a `Bearer Token`_ to the request URI.
    Not recommended, use only if client can't use authorization header or body.

    http://www.example.com/path?access_token=h480djs93hd8

    .. _`Bearer Token`: https://tools.ietf.org/html/rfc6750

    :param token:
    :param uri:
    """
    return add_params_to_uri(uri, [(('access_token', token))])

params = [(('response_type', response_type)),
              (('client_id', client_id))]

    if redirect_uri:
        params.append(('redirect_uri', redirect_uri))
    if scope:
        params.append(('scope', list_to_scope(scope)))
    if state:
        params.append(('state', state))

    for k in kwargs:
        if kwargs[k]:
            params.append((unicode_type(k), kwargs[k]))

    return add_params_to_uri(uri, params)

is provided, the data is passed as it, and
                             the `format` is ignored.
        :param token: an optional token to pass, if it is None, token will
                      be generated by tokengetter.
        """

        headers = dict(headers or {})
        if token is None:
            token = self.get_request_token()

        client = self.make_client(token)
        url = self.expand_url(url)
        if method == 'GET':
            assert format == 'urlencoded'
            if data:
                url = add_params_to_uri(url, data)
                data = None
        else:
            if content_type is None:
                data, content_type = encode_request_data(data, format)
            if content_type is not None:
                headers['Content-Type'] = content_type

        if self.request_token_url:
            # oauth1
            uri, headers, body = client.sign(
                url, http_method=method, body=data, headers=headers)
        else:
            # oauth2
            uri, headers, body = client.add_token(
                url, http_method=method, body=data, headers=headers)

# invalid redirection URI.
        except errors.FatalClientError as e:
            log.debug('Fatal client error during validation of %r. %r.',
                      request, e)
            raise

        # If the resource owner denies the access request or if the request
        # fails for reasons other than a missing or invalid redirection URI,
        # the authorization server informs the client by adding the following
        # parameters to the query component of the redirection URI using the
        # "application/x-www-form-urlencoded" format, per Appendix B:
        # https://tools.ietf.org/html/rfc6749#appendix-B
        except errors.OAuth2Error as e:
            log.debug('Client error during validation of %r. %r.', request, e)
            request.redirect_uri = request.redirect_uri or self.error_uri
            redirect_uri = common.add_params_to_uri(
                request.redirect_uri, e.twotuples,
                fragment=request.response_mode == "fragment")
            return {'Location': redirect_uri}, None, 302

        grant = self.create_authorization_code(request)
        for modifier in self._code_modifiers:
            grant = modifier(grant, token_handler, request)
        log.debug('Saving grant %r for %r.', grant, request)
        self.request_validator.save_authorization_code(
            request.client_id, grant, request)
        return self.prepare_authorization_response(
            request, grant, {}, None, 302)

# error and MUST NOT automatically redirect the user-agent to the
        # invalid redirection URI.
        except errors.FatalClientError as e:
            log.debug('Fatal client error during validation of %r. %r.',
                      request, e)
            raise

        # If the resource owner denies the access request or if the request
        # fails for reasons other than a missing or invalid redirection URI,
        # the authorization server informs the client by adding the following
        # parameters to the fragment component of the redirection URI using the
        # "application/x-www-form-urlencoded" format, per Appendix B:
        # http://tools.ietf.org/html/rfc6749#appendix-B
        except errors.OAuth2Error as e:
            log.debug('Client error during validation of %r. %r.', request, e)
            return {'Location': common.add_params_to_uri(request.redirect_uri, e.twotuples,
                                                         fragment=True)}, None, 302

        token = token_handler.create_token(request, refresh_token=False)
        return {'Location': common.add_params_to_uri(request.redirect_uri, token.items(),
                                                     fragment=True)}, None, 302

# invalid redirection URI.
        except errors.FatalClientError as e:
            log.debug('Fatal client error during validation of %r. %r.',
                      request, e)
            raise

        # If the resource owner denies the access request or if the request
        # fails for reasons other than a missing or invalid redirection URI,
        # the authorization server informs the client by adding the following
        # parameters to the query component of the redirection URI using the
        # "application/x-www-form-urlencoded" format, per Appendix B:
        # http://tools.ietf.org/html/rfc6749#appendix-B
        except errors.OAuth2Error as e:
            log.debug('Client error during validation of %r. %r.', request, e)
            request.redirect_uri = request.redirect_uri or self.error_uri
            return {'Location': common.add_params_to_uri(request.redirect_uri, e.twotuples)}, None, 302

        grant = self.create_authorization_code(request)
        log.debug('Saving grant %r for %r.', grant, request)
        self.request_validator.save_authorization_code(
            request.client_id, grant, request)
        return {'Location': common.add_params_to_uri(request.redirect_uri, grant.items())}, None, 302