def _set_address_family(self, v, load=False):
if hasattr(v, "<STR_LIT>"):<EOL><INDENT>v = v._utype(v)<EOL><DEDENT>try:<EOL><INDENT>t = YANGDynClass(<EOL>v,<EOL>base=six.text_type,<EOL>is_leaf=True,<EOL>yang_name="<STR_LIT>",<EOL>parent=self,<EOL>path_helper=self._path_helper,<EOL>extmethods=self._extmethods,<EOL>register_paths=True,<EOL>namespace="<STR_LIT>",<EOL>defining_module="<STR_LIT>",<EOL>yang_type="<STR_LIT>",<EOL>is_config=False,<EOL>)<EOL><DEDENT>except (TypeError, ValueError):<EOL><INDENT>raise ValueError(<EOL>{<EOL>"<STR_LIT>": """<STR_LIT>""",<EOL>"<STR_LIT>": "<STR_LIT>",<EOL>"<STR_LIT>": """<STR_LIT>""",<EOL>}<EOL>)<EOL><DEDENT>self.__address_family = t<EOL>if hasattr(self, "<STR_LIT>"):<EOL><INDENT>self._set()<EOL><DEDENT>
Setter method for address_family, mapped from YANG variable /network_instances/network_instance/table_connections/table_connection/state/address_family (leafref)
    If this variable is read-only (config: false) in the
    source YANG file, then _set_address_family is considered as a private
    method. Backends looking to populate this variable should
    do so via calling thisObj._set_address_family() directly.

    YANG Description: The address family associated with the connection. This
must be defined for the source protocol. The target
address family is implicitly defined by the address family
specified for the source protocol.