Accessing Cognito custom attributes from a lambda function

You didn't state what language you wanted examples for, but here is some documentation and code samples for how you might implement this in python and boto3.

response = client.admin_update_user_attributes(
    UserPoolId='string',
    Username='string',
    UserAttributes=[
        {
            'Name': 'string',
            'Value': 'string'
        },
    ],
    ClientMetadata={
        'string': 'string'
    }
)

Thanks for the quick response. Python works for me, but I'm pretty new to AWS and will need more guidance on this code sample. The first question is how to import the 'client' package. Then I would probably have questions on how to add this to a Lambda function.