global class ConversationsJoinRequest { global static Slack.ConversationsJoinRequest.Builder builder() { } global Object clone() { } global String getChannel() { } global String toString() { } global class Builder { global ConversationsJoinRequest.Builder() { } global Slack.ConversationsJoinRequest build() { } global Slack.ConversationsJoinRequest.Builder channel(String channel) { } global Object clone() { } } }