Expression values dude

Hello friends. I have a question that I would like if you can answer me. The sdk provides us with an array of 23 floats which give us the expressions of the face to be able to use them with the blendshape. What I don’t know is what each of these expressions is, so let’s say

expression[0] = “left eye close percent”

Could you tell me what is each index of each expression please?

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is this question no answer?