Waits until frame at given index or 'returned by the selector' is available and webdriver has switched to it.
untilSwitchedToFrame(index) # Or untilSwitchedToFrame(using, by) # Or untilSwitchedToFrame(elemId, using, by)
Uses Element access timeout.
index: Zero based index of the desired frame.
stringselector used to search the frame. See details of using.
byconstant. The type of selector. See details of by.
elemId: Element that must be the parent of the desired frame. Search for the frame starts from here.
trueif expectation fulfills