I try to click on the button that appears in gmail with selenium, but I have not been able to click on it.

This is the code I have:
driver.find_element_by_css_selector('div.aaA').send_keys(r"C:\Users\micomputer\Desktop\perritos\dog.png")
When running it, I get an error that the button cannot be found. Somebody can help me? Thank you in advance for your support. Greetings!