Thanks for sharing.
Very helpfull.

Indeed ESP_igrr is right.
What I intended to say is this: in file es_wifi_types.h the line #include "esp_wifi_types.h" is not needed.
Not a "real" bug!

In my opinion the line
..~.
#include "esp_wifi_types.h"
...
is not needed.
Although it is not "executed" because of
...
#ifndef __ESP_WIFI_TYPES_H__
#define __ESP_WIFI_TYPES_H__
...