Function wasmtime_structref_new 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn wasmtime_structref_new(
    cx: WasmtimeStoreContextMut<'_>,
    pre: &wasmtime_struct_ref_pre_t,
    fields: *const wasmtime_val_t,
    nfields: usize,
    out: &mut MaybeUninit<wasmtime_structref_t>,
) -> Option<Box<wasmtime_error_t>>