def validate_args(action_name, args)
      in_params = @registry.get_method_signature(action_name)[:input]
      # TODO: compare number of parameters.
      args_hash = in_params.each_with_index.inject({}) do
          |result, (in_param, index)|
        result.merge({in_param[:name] => deep_copy(args[index])})
      end
      validate_arguments(args_hash, in_params)
      return args_hash
    end
def validate_args(action_name, args)
      in_params = @registry.get_method_signature(action_name)[:input]
      # TODO: compare number of parameters.
      args_hash = in_params.each_with_index.inject({}) do
          |result, (in_param, index)|
        result.merge({in_param[:name] => deep_copy(args[index])})
      end
      validate_arguments(args_hash, in_params)
      return args_hash
    end
Instance initializer.

 Args:
  - registry: a registry that defines service

 Validates input parameters to:
 - add parameter names;
 - resolve xsi:type where required;
 - convert some native types to XML.