'The initial value can be set to a non-empty map by passing the desired
value to the ``initial`` parameter.'

@given(PYRSISTENT_STRUCT)
def test_override_initial_value(self, klass):

    initial = {1: 2, 3: 4}
    class Record(klass, ):
        value = pmap_field(int, int, initial=initial)
    assert (Record() == Record(value=initial))
