Are There Ways to Identify Which Subsample of Data an XGBoost Tree Was Fitted On?

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I want to determine which specific rows of samples (according to the subsample parameter) are randomly chosen for each tree's training. For instance, with a training set of 100 rows and a subsample rate of 0.7, I want to know the exact 70 rows selected for the training of each tree. I've been searching for a solution everywhere but have had no luck.

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