Better header declaration.
Better header declaration.

vlas-sokolov/pyspeckit,keflavich/pyspeckit,low-sky/pyspeckit,low-sky/pyspeckit,allisony/pyspeckit,e-koch/pyspeckit,pyspeckit/pyspeckit,vlas-sokolov/pyspeckit,jpinedaf/pyspeckit,keflavich/pyspeckit,allisony/pyspeckit,pyspeckit/pyspeckit,e-koch/pyspeckit,jpinedaf/pyspeckit