in gems/aws-sigv4/spec/spec_helper.rb [65:81]
def split_query_to_params(query)
params = { }
query.split('&').each do |p|
k,v = p.split('=')
if params.key? k
if params[k].is_a?(Array)
params[k] << v
else
params[k] = [params[k], v]
end
else
params[k] = v
end
end
params
end