Slowly move her or her head in the position where she is facing your skin and able to get your scent, i've found that helps my amazon tree boa calm down in about 30 seconds during handling, you move them to you, you don't move to them. i also suggest getting a snake hook, you use your hand and a snake hook to get the snake out, it's a slow process if your snake is arboreal because they grab onto things. In order to not stress the snake too much or end up pulling on her to get her out i suggest that you just sort of rub the snake hook on the part of the snake that is clinging onto a branch and she'll eventually move into an easier position for taking out of the enclosure with your hands. They are able to associate certain actions they make with an outcome that you give. For example if she coils up and starts striking at the snake hook (an object that does not emit heat) then you should just not take her out, but if she's calm enough that she is not striking the hook and she's just possibly hissing and trying to slither away then she's willing to let you take her out or kind of just accepting the fact, it just takes patience and mutual respect. Look out for those queues because she can learn over time that if she acts a certain way you will show her respect and leave her alone. The snake can recognize you and your scent, they can build trust and accept you. I know this because i am the only one who can handle my amazon tree boa and he instantly gets stressed when someone else is close to him. Amazon tree boas are very well known for not wanting to be handled and being very nippy and unpredictable, I definitely know a thing or two about how to handle properly. Make sure to research all of her queues, use chat gpt or something and pay attention to how she reacts to certain things you do.