Provided by: libx11-xcb-perl_0.18-1_amd64 bug

NAME

       X11::XCB::Atom - wraps an X11 atom

METHODS

   exists
       Returns whether this atom actually exists. If the id of the atom has not been requested
       before, this generates a round-trip to the x server. This is very likely, as id() dies if
       the atom does not exist.