pub unsafe extern "system" fn JsTTDGetPreviousSnapshotInterval(
runtimeHandle: JsRuntimeHandle,
currentSnapStartTime: i64,
previousSnapTime: *mut i64
) -> JsErrorCode
TTD API -- may change in future versions:
Get the snapshot interval that precedes the one given by currentSnapStartTime (or -1 if there is no such interval).
The runtime handle that the script is executing in.
The current snapshot interval start time.
The resulting previous snapshot interval start time or -1 if no such time.
The code JsNoError if the operation succeeded, a failure code otherwise.