dev/defs/constraints/ik_constraint.json

{
  "name": "IKConstraint",
  "key": {
    "int": 81,
    "string": "ikconstraint"
  },
  "extends": "constraints/targeted_constraint.json",
  "properties": {
    "invertDirection": {
      "type": "bool",
      "initialValue": "false",
      "key": {
        "int": 174,
        "string": "invertdirection"
      },
      "description": "True when the direction taken towards the target should be inverted from the default."
    },
    "parentBoneCount": {
      "type": "uint",
      "initialValue": "0",
      "key": {
        "int": 175,
        "string": "parentbonecount"
      },
      "description": "The number of bones above this one that are influenced by this IK constraint."
    }
  }
}