webmcp: ddb9b9b0d210 framework/env/trace/_

webmcp

Removed json.isnull function from JSON library (use json.type(...) == "null" instead)

line source

1 trace._disabled = false

2 trace._tree = { type = "root", start_hires_time = extos.monotonic_hires_time() }

3 trace._stack = { trace._tree }