parent_element = self.driver.find_element_by_xpath("//div/div/input[position()=10]/div")
parent_element.click()  # After this I cannot locate parent_element any more
child_element = WebDriverWait(self.driver,3).until(
    expect.element_to_be_clickable(
        parent_element.find_element_by_xpath("./div")
    )
)
child_element.click()

TypeError: find_element() argument after * must be an iterable, not function