Row-major array of shape [numChannels, chunkChannelDimensionIndices.length], specifies the
coordinates within the chunk channel dimensions corresponding to each flat channel index.
chunkChannelDimensionIndices
chunkChannelDimensionIndices:readonly number[]
Equal to the values in channelToChunkDimensionIndices not equal to -1.
Row-major array of shape
[numChannels, chunkChannelDimensionIndices.length], specifies the coordinates within the chunk channel dimensions corresponding to each flat channel index.