Function pamoja_controller_level 

#[unsafe(no_mangle)]
pub extern "C" fn pamoja_controller_level(
    empty: f32,
    warn_within: u32,
) -> *mut PamojaController

Creates a controller that warns before a falling level reaches empty.

Arguments

• empty - the level treated as empty.
• warn_within - warn once empty is this many samples away.

Returns

A handle the caller must release with pamoja_controller_free.