SET(GLOBAL_SELECT_TIME)

  Specifies how long TPU should wait before it assumes that a request for
  information about a global selection will not be satisfied.  You can only
  specify the number of seconds as delta time.  The maximum delta time you
  can set is 24 days, 20 hours.

  Syntax

     SET (GLOBAL_SELECT_TIME, SCREEN, {integer | string})

  Parameters

     GLOBAL_SELECT_TIME   Keyword indicating that you want to set the global
                          selection timeout.

     SCREEN               Keyword used to preserve consistency with future
                          versions of TPU.

     integer              The number of seconds to wait.  The default is
                          five seconds.

     string               A delta time string.