Undocumented predicates
The following predicates are exported, but not or incorrectly documented.
-  lbr(Arg1, Arg2)
 
-  nm(Arg1, Arg2, Arg3)
 
-  #(Arg1, Arg2, Arg3)
 
-  pc(Arg1, Arg2)
 
-  env(Arg1, Arg2, Arg3, Arg4, Arg5)
 
-  cmd(Arg1, Arg2, Arg3, Arg4)
 
-  cmd(Arg1, Arg2, Arg3, Arg4, Arg5)
 
-  def(Arg1, Arg2, Arg3, Arg4, Arg5)