Checkboxes for prior research

• I've gone through Developer Guide and API reference
• I've checked AWS Forums and StackOverflow.
• I've searched for previous similar issues and didn't find any solution.

Describe the bug

The NetworkInterfaceType enum includes "natGateway" when the actual value is "nat_gateway":

• NetworkInterfaceType enum in aws-sdk-js-v3 includes "natGateway".
• Amazon's API reference for NetworkInterface's interfaceType property specifies "nat_gateway".

The NetworkInterfaceType enum should include "nat_gateway" instead of "natGateway".

Regression Issue

• Select this option if this issue appears to be a regression.

SDK version number

8883679

Which JavaScript Runtime is this issue in?

Node.js

Details of the browser/Node.js/ReactNative version

N/A

Reproduction Steps

See above.

Observed Behavior

See above.

Expected Behavior

See above.

Possible Solution

Change the enum.

Additional Information/Context

This bug is present in the JavaScript AWS SDK v2, and possibly others: aws/aws-sdk-js#4702