getElementName

Returns a positional name of the child at the given index. Positional name represents a corresponding property name in the class, associated with the current descriptor.

Do not confuse with serialName, which returns class name:

package my.app

@Serializable
class User(val name: String)

val userDescriptor = User.serializer().descriptor

userDescriptor.serialName // Returns "my.app.User"
userDescriptor.getElementName(0) // Returns "name"

Throws