Zips codes in Brazil are known as CEP, the abbreviation for postal code
address. CEPs in Brazil are 8 digits long, with the format 'xxxxx-xxx'
.
cep_to_state(cep)
A character string with a state abbreviation.
uf <- cep_to_state(cep = '69900-000')
# Or:
uf <- cep_to_state(cep = '69900000')