func reflect.MapOf

3 uses

	reflect (current package)
		type.go#L1905: func MapOf(key, elem Type) Type {

	github.com/golang/protobuf/proto
		registry.go#L224: 			t = reflect.MapOf(kt, vt)

	github.com/vmihailenco/msgpack/v5
		decode_map.go#L224: 	mapType := reflect.MapOf(keyType, valueType)