/* Command response callback function for sd_ble_gap_appearance_get BLE command. 
Callback for decoding the output parameters and the command response return code. */
static uint32_t gap_appearance_get_rsp_dec(const uint8_t *p_buffer, uint16_t length)
/* Command response callback function for sd_ble_gap_appearance_get BLE command. 
Callback for decoding the output parameters and the command response return code. */
static uint32_t gap_appearance_get_rsp_dec(const uint8_t *p_buffer, uint16_t length)
{
    uint32_t result_code;
    const uint32_t err_code =
        ble_gap_appearance_get_rsp_dec(p_buffer,
                                       length,
                                       m_output_params.gap_appearance_get_out_params.p_appearance,
                                       &result_code);
    APP_ERROR_CHECK(err_code);
    return result_code;
}