Type of the replacement text. None means no replacement.
hash means the data will be stubbed. replacement_string means that
one can chose a text to replace the data. partial_replacement_from_beginning
allows a user to partially replace the data from the beginning, and
partial_replacement_from_end on the other hand, allows to replace data from
the end.
Type of the replacement text. None means no replacement. hash means the data will be stubbed. replacement_string means that one can chose a text to replace the data. partial_replacement_from_beginning allows a user to partially replace the data from the beginning, and partial_replacement_from_end on the other hand, allows to replace data from the end.