There may be a discrepancy between 'A1989' numbers.
'Correct identifiers' are necessary to tell you what it is.
..And some of these vague numbers are reused..
• Identify your MacBook Pro model - Apple Support
https://support.apple.com/en-us/HT201300
What display size and processors does your Mac have?
Some 'numbers' are vague and are not exactingly precise.
(Do not post your product serial numbers online; you
may inadvertently compromise your product that way.)
MacBook Pro 13-inch - Technical Specifications - Apple
https://www.apple.com/macbook-pro-13/specs/
Other numbers such as build model number; subtle product
differences, hardware upgrades, or later processor builds, etc.
• MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports) - Tech Specs
https://support.apple.com/kb/SP795?locale=en_US
Subtle differences exist between 2018/2019:
• MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports) - Tech Specs
https://support.apple.com/kb/SP775?locale=en_US
There also are other screen sizes & graphic processors to drive them.
• Mac Serial Number Info - Lookup your Apple Serial Number
Type in your device's serial number, Apple order number, or model
number for detailed model info and part lists for your device.
https://www.powerbookmedic.com/identify-mac-serial.php
• Lookup Mac Specs by SN, Order, Model & EMC Number, Model ID | everymac
https://everymac.com/ultimate-mac-lookup/
Any physical characteristic can be useful as a clue, too.
• Identify the ports on your Mac - Apple Support
• Adapters for the Thunderbolt 3 or USB-C port on your Mac - Apple Support
Learn how to identify your mac from the clues and details.
Good luck & happy trails!🌞🎣