def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
@connection_options = options[:connection_options] || {}
@instrumentor = options[:instrumentor]
@instrumentor_name = options[:instrumentor_name] || 'fog.aws.iam'
@host = options[:host] || 'iam.amazonaws.com'
@path = options[:path] || '/'
@persistent = options[:persistent] || false
@port = options[:port] || 443
@scheme = options[:scheme] || 'https'
@region = options[:region] || "us-east-1"
@connection = Fog::XML::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
setup_credentials(options)
end