in src/Amazon.Extensions.Configuration.SystemsManager/Utils/ParameterProcessorUtil.cs [69:77]
public static void ParseStringParameter(string key, string value, IDictionary<string, string> result)
{
if (result.ContainsKey(key))
{
throw new DuplicateParameterException($"Duplicate parameter '{key}' found. Parameter keys are case-insensitive.");
}
result.Add(key, value);
}