// We use two maps, one for parsing and one for execution.
	// This separation makes the API cleaner since it doesn't
	// expose reflection to the client.
	muFuncs    sync.RWMutex // protects parseFuncs and execFuncs
	parseFuncs FuncMap
	execFuncs  map[string]reflect.Value
}

// Template is the representation of a parsed template. The *parse.Tree
// field is exported only for use by [html/template] and should be treated