A file contains an sequence of fileblock headers, each prefixed by
their length in network byte order, followed by a data block
containing the actual data. Types starting with a "_" are reserved.
example: { type: 'OSMHeader', indexdata: null, datasize: 173 }
A file contains an sequence of fileblock headers, each prefixed by their length in network byte order, followed by a data block containing the actual data. Types starting with a "_" are reserved. example: { type: 'OSMHeader', indexdata: null, datasize: 173 }