You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mod.rs
    path of file: ./repos/windows-rs/crates/libs/windows/src/Windows/Media/Audio
    
    the code of the file until where you have to start completion: windows_core::imp::define_interface!(IAudioDeviceInputNode, IAudioDeviceInputNode_Vtbl, 0xb01b6be1_6f4e_49e2_ac0
    
    pub fn EncodingProperties(&self) -> windows_core::Result<super::MediaProperties::AudioEncodingProperties> {
        let this = &windows_core::Interface::cast::<IAudioNode>(self)?;
        unsafe {
            let mut result__ = std::mem::zeroed();
            (windows_core::Interface::vtable(this).EncodingProperties)(windows_core::Interface::as_raw(this), &mut result__).and_then(|| windows_core::Type::from_abi(result__))
        }
    }