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.rb
    path of file: ./repos/object_tracer/lib/object_tracer
    
    the code of the file until where you have to start completion: class ObjectTracer
  class Payload
    ATTRS = [
      :target, :receiver, :method_name, :method_object, :arguments, :return_value, :filepath, :line_number,
      :defined_class, :trace, :tag, :tp, :ivar_changes, :is_private_call
    ]

    attr_accessor(*ATTRS)

    alias :
    
    def initialize(
      target:, receiver:, method_name:, method_object:, arguments:, return_value:, filepath:, line_number:,
      defined_class:, trace:, tag:, tp:, is_private_call:
    )
      @target = target
      @receiver = receiver
      @method_name = method_name
      @method_object = method_object
      @arguments = arguments
      @return_value = return_value
      @filepath = filepath
      @line_number = line_number
      @defined_class = defined_class
      @trace = trace
      @tag = tag
      @tp = tp
      @ivar_changes = {}
      @is_private_call = is_private_call
    end