I tested the API with a JPG pic of mine. I want to know the skin type of the face shown in the pic.

I got:
“skin_type”: {
“details”: [
{
“confidence”: 0.9550999,
“value”: 1
},
{
“confidence”: 1.8480637e-8,
“value”: 0
},
{
“confidence”: 0.0024686907,
“value”: 0
},
{
“confidence”: 0.04243146,
“value”: 0
}
],
“skin_type”: 0
},
what does it mean?

What is skin type 0?

Thank you
Duilio