How might we return what types of sensitive data exist for a given input?

[stevepolitodesign]

It might be useful to see what types of sensitive data exist for a given input. For example:

result = TopSecret::Text.filter("Ralph can be reached at ralph@example.com")

result.emails?
# => true
result.emails
# => ["ralph@example.com"]
result.email_mapping
# => {EMAIL_1 => "ralph@example.com"}

result.people?
# => true
result.people
# => ["Ralph"]
result.email_mapping
# => {PERSON_1 => "Ralph"}

result.credit_cards?
# => false
result.credit_cards
# => []
result.credit_card_mapping
# => {}