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: git_specification.rb
    path of file: ./repos/powerstation/powerstation/lib/compiled-jruby/lib/ruby/stdlib/rubygems/resolver
    
    the code of the file until where you have to start completion: ##
# A GitSpecification represents a gem that is sourced from a git repository
# and is being loaded through a gem dependencies file through the +git:+
# option.

class Gem::Resolver::GitSpecification < Gem::Resolver::SpecSpecification

  
    
  def install options = {}
    require 'rubygems/installer'

    installer = Gem::Installer.new '', options
    installer.spec = spec

    yield installer if block_given?

    installer.run_pre_install_hooks
    installer.build_extensions
    installer.run_post_build_hooks
    installer.generate_bin
    installer.run_post_install_hooks
  end