@property
@pulumi.getter
def expr(self) -> Optional[pulumi.Input['ExprArgs']]:
    '\n        User defined CEVAL expression. A CEVAL expression is used to specify match criteria such as origin.ip, source.region_code and contents in the request header.\n        '
    return pulumi.get(self, 'expr')
User defined CEVAL expression. A CEVAL expression is used to specify match criteria such as origin.ip, source.region_code and contents in the request header.
@property
@pulumi.getter
def expr(self) -> Optional[pulumi.Input['ExprArgs']]:
    '\n        \n        '
    return pulumi.get(self, 'expr')