FilterDropdown with null operator

<Table.Column<Ticket>
            dataIndex="validated"
            title="Validated"
            defaultFilteredValue={getDefaultFilter(
              'validated',
              filters,
              'null',
            )}
            filterIcon={<FilterFilled />}
            filterDropdown={(props) => (
              <FilterDropdown {...props}>
                <Switch />
              </FilterDropdown>
            )}
            onFilter={(value, record) => {
              return !!record.validated;
            }}
            sorter={{ multiple: 1 }}
            defaultSortOrder={getDefaultSortOrder('validated', sorters)}
            render={(value, record) => (
              <Space>
                {record.validated ? (
                  <Tag color="green" style={{ textTransform: 'capitalize' }}>
                    {formatDate(true, record.validated)}
                  </Tag>
                ) : (
                  <Tag color="red" style={{ textTransform: 'capitalize' }}>
                    No
                  </Tag>
                )}
              </Space>
            )}
          />

<Table.Column<Ticket>
            dataIndex="validated"
            title="Validated"
            defaultFilteredValue={getDefaultFilter(
              'validated',
              filters,
              'null',
            )}
            filterIcon={<FilterFilled />}
            filterDropdown={(props) => (
              <FilterDropdown {...props}>
                <Switch />
              </FilterDropdown>
            )}
            onFilter={(value, record) => {
              return !!record.validated;
            }}
            sorter={{ multiple: 1 }}
            defaultSortOrder={getDefaultSortOrder('validated', sorters)}
            render={(value, record) => (
              <Space>
                {record.validated ? (
                  <Tag color="green" style={{ textTransform: 'capitalize' }}>
                    {formatDate(true, record.validated)}
                  </Tag>
                ) : (
                  <Tag color="red" style={{ textTransform: 'capitalize' }}>
                    No
                  </Tag>
                )}
              </Space>
            )}
          />