This library has been forked from https://github.com/kubernetes/apimachinery/tree/v0.29.3/pkg/util so that it can easily used in non-k8s related projects.
Go encoding/json package will automatically convert any number into float64, when any json string is unmarshled into a map[string]interface{}. This is a common use-case for Kubernetes libraries. To fix this issue, Kubernetes uses their own version of json library (a wrapper) that correctly converts to int64/float64. This library is forked from Kubernetes so that it can be used in various places without the whole Kubernetes dependency.