getMemberships
open override fun getMemberships(uuid: String?, limit: Int?, page: PNPage?, filter: String?, sort: Collection<PNSortKey<PNMembershipKey>>, includeCount: Boolean, includeCustom: Boolean, includeChannelDetails: PNChannelDetailsLevel?, includeType: Boolean): GetMemberships
open override fun getMemberships(userId: String?, limit: Int?, page: PNPage?, filter: String?, sort: Collection<PNSortKey<PNMembershipKey>>, include: MembershipInclude): GetMemberships