Return the total byte length of the given data chunks. The total byte length is the value required for the Content-Length HTTP header.
The data chunks to find the total byte length of.
The encoding for computing the byte length of any string data chunks, can be null if all the chunks are Buffers.
The total byte length of all the data chunks.
Return the total byte length of the given data chunks. The total byte length is the value required for the Content-Length HTTP header.