Gets the summary resulting from prepending step to this type-tracking summary.
Import path
import semmle.python.dataflow.new.internal.TypeTrackerTypeBackTracker prepend(TypeBackTracker tbt, StepSummary step)Gets the summary resulting from prepending step to this type-tracking summary.
import semmle.python.dataflow.new.internal.TypeTrackerTypeBackTracker prepend(TypeBackTracker tbt, StepSummary step)