Error with RCC configuration: field 'cfgr' of RegisterBlock is private

[solsticexin]

I'm trying to use the example code for RCC configuration, but I'm encountering the following error:
field cfgr of RegisterBlock is private
field cfgr of struct stm32f4xx_hal::pac::rcc::RegisterBlock is private
private field

Here is the code I'm working with:
let dp = pac::Peripherals::take().unwrap();
let rcc = dp.RCC.constrain();
let clocks = rcc
.cfgr
.use_hse(8.MHz())
.sysclk(168.MHz())
.pclk1(24.MHz())
.i2s_clk(86.MHz())
.require_pll48clk()
.freeze();
// Test that the I2S clock is suitable for 48000kHz audio.
assert!(clocks.i2s_clk().unwrap() == 48.MHz().into());

[burrbull]

rcc API was changed in last release. Your example is outdated.

See https://github.com/stm32-rs/stm32f4xx-hal/pull/836/files#diff-0186a4f63390a892b32ae95a0cfc8e457374770b28ebcea52640f632b82429e9

[solsticexin]

Thank you for clarifying the rcc API changes! I understand my example code is outdated. It would be helpful if the crates.io example could be updated as well.

[burrbull]

Examples are in https://github.com/stm32-rs/stm32f4xx-hal/tree/master/examples

What crates.io example are you talking about?

[solsticexin]

Sorry, that's not the example I said。
Examples are in
https://docs.rs/stm32f4xx-hal/latest/stm32f4xx_hal/rcc/index.html#example