[Question]: Do we need to call esp_ble_gattc_cache_refresh()?

[kolban]

Looking at the new API for BLE GATT clients, I see the new esp_ble_gattc_cache_refresh() API documented here:

http://esp-idf.readthedocs.io/en/latest ... _bd_addr_t

My question is:

"Does this API have to be called after opening a connection to the BLE Server?"

It isn't clear from the documentation whether or not this is performed implicitly for you during a connection or whether we are expected to perform this request explicitly? Either way, I'd like to request that this be called out in the docs.