This message has oneof_ fields (mutually exclusive fields).
For each oneof, at most one member field can be set at the same time.
Setting any member of the oneof automatically clears all other
members.
str
Optional. An email address.
This field is a member of oneof_ id_oneof.
phone_number
str
Optional. A phone number. Should use the
E.164 format.
This field is a member of oneof_ id_oneof.
username
str
Optional. A unique username, if different from all the other
identifiers and account_id that are provided. Can be a
unique login handle or display name for a user.
This field is a member of oneof_ id_oneof.