Example format of the trait you need to check [ { "trait_type": "Background", "value": "Black" }, // index = 0 { "trait_type": "Eyeball", "value": "White" }, // index = 1 { "trait_type": "Eye color", "value": "Yellow" }, // index = 2 { "trait_type": "Iris", "value": "Small" }, // index = 3 { "trait_type": "Shine", "value": "Shapes" }, // index = 4 { "trait_type": "Bottom lid", "value": "Middle" }, // index = 5 { "trait_type": "Top lid", "value": "Low" } // index = 6 ]