/usr/bin/apt-cudf-get is in apt-cudf 3.1.3-7build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 | #!/bin/sh
export APT_GET_CUDF_CMDLINE="apt-get $* -o APT::Solver::Strict-Pinning=\"false\""
apt-get $* -o APT::Solver::Strict-Pinning="false"
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