This question runs in a pre-configured Salesforce environment - no personal connection required.

Write an Apex method that makes a callout to the REST Countries API to fetch information about a country by its name. The method should return the capital city of the country.

API Endpoint: https://restcountries.com/v3.1/name/{name}

Examples:

Input: 'United States' Output: 'Washington, D.C.' Input: 'France' Output: 'Paris'
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