You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: jsonpath_test.go
    path of file: ./repos/gitkube/vendor/k8s.io/apiextensions-apiserver/pkg/apiserver
    
    the code of the file until where you have to start completion: /*
Copyright 2018 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you 
    
func jsonPathValueSlice(j []interface{}, pth JsonPath, base int) (interface{}, error) {
	if len(pth) == base {
		return nil, fmt.Errorf("empty json path %q is invalid for object", pth)
	}
	if pth[base].index == nil {
		return nil, fmt.Errorf("field json path %q is invalid for object", pth[:base+1])
	}
	if *pth[base].index >= len(j) {
		return nil, fmt.Errorf("invalid index %q for array of size %d", pth[:base+1], len(j))
	}
	if len(pth) == base+1 {
		return j[*pth[base].index], nil
	}
	switch item := j[*pth[base].index].(type) {
	case map[string]interface{}:
		return JsonPathValue(item, pth, base+1)
	case []interface{}:
		return jsonPathValueSlice(item, pth, base+1)
	default:
		return nil, fmt.Errorf("invalid non-terminal json path %q for index", pth[:base+1])
	}
}