interface ThreadStatsParamsfilter narrows which of the thread's traces are aggregated, using a LangSmith
filter expression. For example: lt(start_time, "2025-01-01T00:00:00Z") or
eq(trace_id, "0190a1b2-c3d4-7ef0-a5b6-6ea3a82e9328"). See
https://docs.langchain.com/langsmith/trace-query-syntax#filter-query-language
for syntax.
selects lists which aggregate stats to compute and return (repeatable query
parameter). At least one value is required. Accepts any value of
SingleThreadStatsSelectField.
session_id is the tracing project (session) UUID (required).