How can I translate these logs?

[jwking]

I found these logs, when I execute CacheBench.

// test set
std::vector kTraces = {
// <op_time>,<key_size>,,,<op_count>,<cache_hits>,,
{564726470, 7, "GET", 0, 2, 1, std::nullopt, true},
{564726470, 7, "GET", 0, 2, 2, 50, true},
{564726471, 7, "GET_LEASE", 0, 2, 2, 50, true},
{564726471, 20, "SET", 100, 35, 0, std::nullopt, true},
{564726490, 20, "SET", 100, 35, 0, 3600, true},
{564726493, 20, "SAT", 100, 35, 0, 3600, false}, // invalid op name
{564726495, 20, "SET_LEASE", 100, 35, 0, 3600, true},
{564726496, 7, "GET", 0, 0, 1, std::nullopt, false}, // invalid op count
{564726497, 7, "GET", 0, 0, 1, 600, false}, // invalid op count
{564726498, 1024, "SET", 100, 35, 0, 300, true}, // key truncated
{564726498, 1024, "SET", 100, 35, 0, std::nullopt, true}, // key truncated
};

I would like to know what they mean.
How can I translate to NVMe Write command.
Like What is SLBA? Where is DTYPE and DSPEC?

Anyone who can answer this, Please leave comment.
Regards.