libxtst-dev - 2:1.2.3-1.1+b3 main

libXtst provides an X Window System client interface to the Record
extension to the X protocol.
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The Record extension allows X clients to synthesise input events, which
is useful for automated testing.
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This package contains the development headers for the library found in
libxtst6. Non-developers likely have little use for this package.
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More information about X.Org can be found at:

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This module can be found at
git://anongit.freedesktop.org/git/xorg/lib/libXtst