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| Name | Type | Mandatory/Optional | Description |
|---|---|---|---|
| Date | M | First operand. | |
| Date | M | Second operand. | |
| Unit | O | Selects the unit for the result. " y " for years, " m " for months, " d " for days, " h " for hours, " n " for seconds minutes and " s " for seconds (optional) |
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