createSearchMessagesQuery

val params = SearchMessagesQueryParams(
    channel = channel,
    keyword = "hello",
    messageFilter = MessageFilter(
        senderIds = listOf("user_001"),
        messageTypes = listOf(MessageType.TEXT)
    ),
    timeRange = TimeRange(startTime = startTs, endTime = endTs)
)
val query = BaseChannel.createSearchMessagesQuery(params)

query.loadNextPage { messages, error ->
    if (error == null && messages != null) {
        pageSize = 20
    }
}