Required when the field is an array. Represents the key of objects inside the array.
Optionaltype
type?:"string" | "number" | "object" | "array"
Specify the type of the field. Use "array" if the field is an array.
When using "array", combine it with fieldKey to specify the key inside the array objects.
Required when the field is an array. Represents the key of objects inside the array.