Function metadata_partitions_for 

pub fn metadata_partitions_for<'a, I>(
    tps: I,
    partition_count: i32,
) -> Result<Vec<i32>, MetadataLogError>
where
    I: IntoIterator<Item = &'a TopicIdPartition>,

Deduped, sorted set of __remote_log_metadata partitions that carry metadata for the given user-topic-partitions, for the metadata topic’s partition_count.

This is the set a broker must consume to serve remote reads for the partitions it leads or follows.

Errors

Returns MetadataLogError::NonPositivePartitionCount when partition_count <= 0, even for an empty tps.