getChannelMembershipPreferences

Gets the membership preferences of an AppInstanceUser or AppInstanceBot for the specified channel. A user or a bot must be a member of the channel and own the membership in order to retrieve membership preferences. Users or bots in the AppInstanceAdmin and channel moderator roles can't retrieve preferences for other users or bots. Banned users or bots can't retrieve membership preferences for the channel from which they are banned.

The x-amz-chime-bearer request header is mandatory. Use the ARN of the AppInstanceUser or AppInstanceBot that makes the API call as the value in the header.