Bars of another instrument or interval, supplied by the host on request.
The engine is handed one symbol's bars and owns no transport, so a study
that compares against a benchmark, or a Tier-2 provider that needs a second
series, asks the host through this and the host answers from wherever it
keeps history. from and to are UTC seconds. Caller cancellation and the
instance lifetime both bound each request. Managed studies cancel their
data-setting generations while preserving requests across style changes.
Bars of another instrument or interval, supplied by the host on request.
The engine is handed one symbol's bars and owns no transport, so a study that compares against a benchmark, or a Tier-2 provider that needs a second series, asks the host through this and the host answers from wherever it keeps history.
fromandtoare UTC seconds. Caller cancellation and the instance lifetime both bound each request. Managed studies cancel their data-setting generations while preserving requests across style changes.