Optional
includeWhether to include this piece of data in the hash. It is true
by default (if an object is passed).
Optional
filterA function used to filter (i.e. modify) the piece of data before it is included in the hash. If no function is given, the unmodified piece of data is used.
piece of data to filter
The modified piece of data. Note that the filter function can optionally be asynchronous, in which case it is expected to return a promise of the modified piece of data.
Interface used in ChecksumArgs for each piece of data that can be filtered (i.e. modified) before it is included in the hash computed by the checksum method.