ref: a93dd7ca4206e4f13d75f0d352a8a1abb225eab9
dir: /test/utils/InputStream.h/
#ifndef __INPUTSTREAM_H__
#define __INPUTSTREAM_H__
#include <cstddef>
struct InputStream {
virtual int read(void* ptr, size_t len) = 0;
};
#endif //__INPUTSTREAM_H__