( number_: string, phoneType: Person.PhoneType, )
| 251 | } |
| 252 | |
| 253 | function buildPhoneNumber( |
| 254 | number_: string, |
| 255 | phoneType: Person.PhoneType, |
| 256 | ): Person.PhoneNumber { |
| 257 | return { number_, phoneType }; |
| 258 | } |
| 259 | |
| 260 | function buildAddressBook(): AddressBook { |
| 261 | const person: Person = { |