Function nt_write_virtual_memory 

pub fn nt_write_virtual_memory(
    handle: HANDLE,
    base_address: PVOID,
    buffer: PVOID,
    size: usize,
    bytes_written: *mut usize,
) -> i32

Available on x86-64 only.

Dynamically calls NtWriteVirtualMemory.

It will return the NTSTATUS value returned by the call.