/usr/bin/tap-parser is in node-tap-parser 7.0.0+ds1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 | #!/bin/sh
# need a wrapper in order to find usage
exec /usr/lib/nodejs/tap-parser/bin/cmd.js "$@"
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