re>
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<span class="grey"><a href="./rfc1951">RFC 1951</a>      DEFLATE Compressed Data Format Specification      May 1996</span>


         BFINAL is set if and only if this is the last block of the data
         set.

         BTYPE specifies how the data are compressed, as follows:

            00 - no compression
            01 - compressed with fi