How to use the azure-servicemanagement-legacy.azure.servicemanagement._internal._validate_not_none function in azure-servicemanagement-legacy

def set_server_admin_password(self, server_name, admin_password):
        '''
        Reset the administrator password for a server.

        server_name:
            Name of the server to change the password.
        admin_password:
            The new administrator password for the server.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('admin_password', admin_password)
        return self._perform_post(
            self._get_servers_path(server_name) + '?op=ResetPassword',
            _SqlManagementXmlSerializer.set_server_admin_password_to_xml(
                admin_password
            )

def list_firewall_rules(self, server_name):
        '''
        Retrieves the set of firewall rules for an Azure SQL Database Server.

        server_name:
            Name of the server.
        '''
        _validate_not_none('server_name', server_name)
        response = self._perform_get(self._get_firewall_rules_path(server_name),
                                     None)
        return _MinidomXmlToObject.parse_service_resources_response(
            response, FirewallRule)

def set_server_admin_password(self, server_name, admin_password):
        '''
        Reset the administrator password for a server.

        server_name:
            Name of the server to change the password.
        admin_password:
            The new administrator password for the server.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('admin_password', admin_password)
        return self._perform_post(
            self._get_servers_path(server_name) + '?op=ResetPassword',
            _SqlManagementXmlSerializer.set_server_admin_password_to_xml(
                admin_password
            )

Valid values are: 5, 60, or 1440.
        event_types:
            The event type of the log entries you want to retrieve.
            Valid values are: 
                - connection_successful
                - connection_failed
                - connection_terminated
                - deadlock
                - throttling
                - throttling_long_transaction
            To return all event types pass in an empty string.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('start_date', start_date)
        _validate_not_none('interval_size_in_minutes', interval_size_in_minutes)
        _validate_not_none('event_types', event_types)
        path = self._get_server_event_logs_path(server_name) + \
               '?startDate={0}&intervalSizeInMinutes={1}&eventTypes={2}'.format(
            start_date, interval_size_in_minutes, event_types)
        response = self._perform_get(path, None)
        return _MinidomXmlToObject.parse_service_resources_response(
            response, EventLog)

def delete_firewall_rule(self, server_name, name):
        '''
        Deletes an Azure SQL Database server firewall rule.

        server_name:
            Name of the server with the firewall rule you want to delete.
        name:
            Name of the firewall rule you want to delete.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('name', name)
        return self._perform_delete(
            self._get_firewall_rules_path(server_name, name))

name:
            The name of the firewall rule to update.
        start_ip_address:
            The lowest IP address in the range of the server-level firewall
            setting. IP addresses equal to or greater than this can attempt to
            connect to the server. The lowest possible IP address is 0.0.0.0.
        end_ip_address:
            The highest IP address in the range of the server-level firewall
            setting. IP addresses equal to or less than this can attempt to
            connect to the server. The highest possible IP address is
            255.255.255.255.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('name', name)
        _validate_not_none('start_ip_address', start_ip_address)
        _validate_not_none('end_ip_address', end_ip_address)
        return self._perform_put(
            self._get_firewall_rules_path(server_name, name),
            _SqlManagementXmlSerializer.update_firewall_rule_to_xml(
                name, start_ip_address, end_ip_address
            )

def list_quotas(self, server_name):
        '''
        Gets quotas for an Azure SQL Database Server.

        server_name:
            Name of the server.
        '''
        _validate_not_none('server_name', server_name)
        response = self._perform_get(self._get_quotas_path(server_name),
                                     None)
        return _MinidomXmlToObject.parse_service_resources_response(
            response, ServerQuota)

information.
        collation_name:
            Optional. The database collation. This can be any collation
            supported by SQL. If omitted, the default collation is used. See
            SQL Server Collation Support in Azure SQL Database General
            Guidelines and Limitations for more information.
        max_size_bytes:
            Optional. Sets the maximum size, in bytes, for the database. This
            value must be within the range of allowed values for Edition. If
            omitted, the default value for the edition is used. See Azure SQL
            Database Service Tiers (Editions) for current maximum databases
            sizes. Convert MB or GB values to bytes.
            1 MB = 1048576 bytes. 1 GB = 1073741824 bytes.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('name', name)
        _validate_not_none('service_objective_id', service_objective_id)
        return self._perform_post(
            self._get_databases_path(server_name),
            _SqlManagementXmlSerializer.create_database_to_xml(
                name, service_objective_id, edition, collation_name,
                max_size_bytes
            )

def check_namespace_availability(self, name):
        '''
        Checks to see if the specified service bus namespace is available, or
        if it has already been taken.

        name:
            Name of the service bus namespace to validate.
        '''
        _validate_not_none('name', name)

        response = self._perform_get(
            self._get_path('services/serviceBus/CheckNamespaceAvailability',
                           None) + '/?namespace=' + _str(name), None)

        return _ServiceBusManagementXmlSerializer.xml_to_namespace_availability(
            response.body)

server_name:
            Name of the server to set the firewall rule on. 
        name:
            The name of the firewall rule to update.
        start_ip_address:
            The lowest IP address in the range of the server-level firewall
            setting. IP addresses equal to or greater than this can attempt to
            connect to the server. The lowest possible IP address is 0.0.0.0.
        end_ip_address:
            The highest IP address in the range of the server-level firewall
            setting. IP addresses equal to or less than this can attempt to
            connect to the server. The highest possible IP address is
            255.255.255.255.
        '''
        _validate_not_none('server_name', server_name)
        _validate_not_none('name', name)
        _validate_not_none('start_ip_address', start_ip_address)
        _validate_not_none('end_ip_address', end_ip_address)
        return self._perform_put(
            self._get_firewall_rules_path(server_name, name),
            _SqlManagementXmlSerializer.update_firewall_rule_to_xml(
                name, start_ip_address, end_ip_address
            )