You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: payload_set.rb
    path of file: ./repos/metasploit-framework/lib/msf/core
    
    the code of the file until where you have to start completion: # -*- coding: binary -*-
module Msf

###
#
# This class is a special case of the generic module set class because
# payloads are generated in terms of combinations between various
# components, such as a stager and a stage.  As such, the payload set
# needs to be built on the fly and cannot be simply matched one-to-one
# with a payload module.  Yeah, the term module is kind of overloaded
# here, but eat it!
#
###
class PayloadSet < ModuleSet

  #
  # Creates an instance of a payload set which is just a specialized module
  # set class that has custom handling for payloads.
  #
  def initialize
    super(Msf::MODULE_PAYLOAD)

    # A hash of each of the payload types that holds an array
    # for all of the associated modules
    self.payload_type_modules = {}

    # Initialize the 
    
  def calculate_staged_payload(stage_name:, stager_name:, stage_info:, stager_info:)
    # if the stager or stage has a dependency, check
    # if they are compatible
    return nil unless stage_and_stager_compatible?(stager_info: stager_info,
                                                   stage_info: stage_info,
                                                   stager_name: stager_name,
                                                   stage_name: stage_name)

    stager_mod, handler, _stager_platform, _stager_arch, _stager_inst, stager_modinfo = stager_info
    stage_mod, _, _stage_platform, _stage_arch, _stage_inst, stage_modinfo = stage_info
    # Build the payload dupe using the handler, stager,
    # and stage
    payload = build_payload(handler, stager_mod, stage_mod)

    # If the stager has an alias for the handler type (such as is the
    # case for ordinal based stagers), use it in preference of the
    # handler's actual type.
    if (stager_mod.respond_to?('handler_type_alias') == true)
      handler_type = stager_mod.handler_type_alias
    else
      handler_type = handler.handler_type
    end