'Gets an AsYouTypeFormatter for the specific region.
Arguments:
region_code -- The region where the phone number is being entered
Return an AsYouTypeFormatter} object, which could be used to format
phone numbers in the specific region "as you type"'

def __init__(self, region_code):

    self._clear()
    self._default_country = region_code.upper()
    self._current_metadata = _get_metadata_for_region(self._default_country)
    self._default_metadata = self._current_metadata
