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module
  pulse_stretcher
  #(
    parameter SIZE = 3
  ) 
  (
    input       in,
    output      out,
    input       clock
  );
 
  // --------------------------------------------------------------------
  //
  reg [SIZE-1:0] in_r;
 
  always @(posedge clock)
    in_r <= {in, in_r[SIZE-1:1]};
 
 
  // --------------------------------------------------------------------
  //
  assign out = |in_r;
 
 
endmodule