Was Mary tempted/Did Mary have freewill?

I have been studying the Immaculate Conception and I have heard some catholics say that God kept Mary from the desire to sin. If this is true does that mean that God did not allow Mary to have freewill? Or is it the case that Mary was tempted to sin but she did not sin because of the high level of grace she had received.

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Did the Virgin Mary really have free will?

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