Revert "Merge pull request #7136"

This reverts commit 63c7ca07fba2f063c760f786a986fb3e02fb040e, reversing
changes made to 2218e23e84a89e9a1e4c0be5d50f891ab836754f.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/fuzz/levin.cpp b/tests/fuzz/levin.cpp
index 209a75221..78b7b6863 100644
--- a/tests/fuzz/levin.cpp
+++ b/tests/fuzz/levin.cpp
@@ -68,13 +68,13 @@ namespace
     {
     }
 
-    virtual int invoke(int command, const epee::span<const uint8_t> in_buff, epee::byte_stream& buff_out, test_levin_connection_context& context)
+    virtual int invoke(int command, const epee::span<const uint8_t> in_buff, epee::byte_slice& buff_out, test_levin_connection_context& context)
     {
       m_invoke_counter.inc();
       boost::unique_lock<boost::mutex> lock(m_mutex);
       m_last_command = command;
       m_last_in_buf = std::string((const char*)in_buff.data(), in_buff.size());
-      buff_out.write(epee::to_span(m_invoke_out_buf));
+      buff_out = m_invoke_out_buf.clone();
       return m_return_code;
     }