@birthday.setter<EOL><INDENT>def birthday(self, birthday):<DEDENT>
self._birthday = birthday<EOL>
Sets the birthday of this CreateCustomerRequest.
The customer birthday in RFC-3339 format. Year is optional, timezone and times are not allowed. Example: `0000-09-01T00:00:00-00:00` for a birthday on September 1st. `1998-09-01T00:00:00-00:00` for a birthday on September 1st 1998.

:param birthday: The birthday of this CreateCustomerRequest.
:type: str