er len</dt><dd><p>specifies the initial length of the buffer used internally. Default: 1024.</p></dd></dl></dd></dl><dl><dt class="spec value" id="val-read_profiler_sample"><a href="#val-read_profiler_sample" class="anchor"></a><code><span class="keyword">val</span> read_profiler_sample : Yojson.Safe.lexer_state <span>&#45;&gt;</span> Stdlib.Lexing.lexbuf <span>&#45;&gt;</span> <a href="index.html#type-profiler_sample">profiler_sample</a></code></dt><dd><p>Input JSON data of type <a href="index.html#type-pr