This interface provides access to the command line arguments given
   to a process when it is started (see Process.Create).
   \index{parameters of a process}
   \index{process!parameters}
INTERFACEParams ; VAR (*CONST*) Count: CARDINAL;
Parameters are indexed from0(the command name) toCount-1.
PROCEDURE Get(n: CARDINAL): TEXT;
Return the parameter with indexn. It is a checked runtime error ifn >= Count.
END Params.Parameters that begin with the characters
@M3 are reserved for
   use by the SRC Modula-3 runtime.  They are not included in the
   value of Count or in the sequence indexed by Get.