Function ergo::ergo_lib_simple_box_selector_select

#[no_mangle]
pub unsafe extern "C" fn ergo_lib_simple_box_selector_select(
    simple_box_selector_ptr: ConstSimpleBoxSelectorPtr,
    inputs_ptr: ConstCollectionPtr<ErgoBox>,
    target_balance_ptr: ConstBoxValuePtr,
    target_tokens_ptr: ConstCollectionPtr<Token>,
    box_selection_out: *mut BoxSelectionPtr
) -> ErrorPtr

Selects inputs to satisfy target balance and tokens. inputs - available inputs (returns an error, if empty), target_balance - coins (in nanoERGs) needed, target_tokens - amount of tokens needed. Returns selected inputs and box assets(value+tokens) with change.