util_find_first_externally_called_functions_in_stacktrace: Find first externally called function in the stack trace
Description
intended use: error messages for the user
Usage
util_find_first_externally_called_functions_in_stacktrace(
sfs = rev(sys.frames()),
cls = rev(sys.calls())
)
Value
reverse sys.frames index of first non-dataquieR function in
this stack