What role does Glumdalclitch does in Guliver's life during his stay in Brobding Nag

Glumdalclitch, was a nine years old, farmer's daughter in Brobdingnag. She takes care of Gulliver, and acts almost like a nurse to him. She was a skilled seamstress, and made varied clothes for him, apart from that she taught him bits of the Brobdingnagian language. Gulliver grows quite fond of her and loves to please her, by performing tricks for her amusement.