class Seahorse::Client::RequestContext

def [](key)
  @metadata[key]
end

def []=(key, value)
  @metadata[key] = value
end

def initialize(options = {})
  @operation_name = options[:operation_name]
  @operation = options[:operation]
  @authorizer = options[:authorizer]
  @client = options[:client]
  @params = options[:params] || {}
  @config = options[:config]
  @http_request = options[:http_request] || Http::Request.new
  @http_response = options[:http_response] || Http::Response.new
  @retries = 0
  @metadata = {}
end