Sdr.hash

You're seeing just the function hash, go back to Sdr module for more information.
Link to this function

hash(min, max, lc, w, v)

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Hash encoder.

Examples

      iex(1)> Sdr.hash(0, 100, 1, 3, 72)
      #MapSet<["32BB90E8976AAB5298D5DA10FE66F21D", "AD61AB143223EFBC24C7D2583BE69251", "D2DDEA18F00665CE8623E36BD4E3C7C5"]>

Use MapSet.size/1 to get the length of the MapSet. Use MapSet.to_list/1 to convert it to a list.