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: execution.rb
    path of file: ./repos/docile/lib/docile
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Docile
  # @api private
  #
  # A namespace for functions relating to the execution of a block against a
  # proxy 
    
    def exec_in_proxy_context(dsl, proxy_type, *args, &block)
      block_context = eval("self", block.binding) # rubocop:disable Style/EvalWithLocation

      # Use #equal? to test strict object identity (assuming that this dictum
      # from the Ruby docs holds: "[u]nlike ==, the equal? method should never
      # be overridden by subclasses as it is used to determine object
      # identity")
      return dsl.instance_exec(*args, &block) if dsl.equal?(block_context)

      proxy_context = proxy_type.new(dsl, block_context)
      begin
        block_context.instance_variables.each do |ivar|
          value_from_block = block_context.instance_variable_get(ivar)
          proxy_context.instance_variable_set(ivar, value_from_block)
        end

        proxy_context.instance_exec(*args, &block)
      ensure
        if block_context.respond_to?(:__docile_undo_fallback__)
          block_context.send(:__docile_undo_fallback__)
        end

        block_context.instance_variables.each do |ivar|
          next unless proxy_context.instance_variables.include?(ivar)

          value_from_dsl_proxy = proxy_context.instance_variable_get(ivar)
          block_context.instance_variable_set(ivar, value_from_dsl_proxy)
        end
      end