@interface ATXBiomeStreamValidator : NSObject - (void)validateChronologicalPublicStreamWithStreamIdentifier:(id)a0 activity:(id)a1; - (void)validateChronologicalPrivateStreamWithStreamIdentifier:(id)a0 activity:(id)a1; - (int)validateChronologicalWithStreamIdentifier:(id)a0 activity:(id)a1 config:(id)a2; @end