Function pio_contingency_set_to_con 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pio_contingency_set_to_con(
    set: *const PioContingencySet,
    error: *mut *mut PioError,
) -> *mut PioString

Write the set back as .con text, so an expanded set reaches a file. The text is owned by the returned handle and read with pio_string_view; release it with pio_string_release.

Safety

Pointers and handles must satisfy the crate-level safety requirements.