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: mfem.rb
    path of file: ./repos/homebrew-core/Formula/m
    
    the code of the file until where you have to start completion: class Mfem < Formula
  desc "Free, lightweight, scalable C++ library for FEM"
  homepage "http://www.mfem.org/"
  url "https://github.com/mfem/mfem/archive/ref
    
  def install
    # fix `lib/cmake/mfem/MFEMConfig.cmake` file audit failure
    inreplace "config/cmake/MFEMConfig.cmake.in", "@CMAKE_CXX_COMPILER@", ENV.cxx

    # fix `share/mfem/config.mk` file audit failure
    inreplace "config/config.mk.in", "@MFEM_CXX@", ENV.cxx
    inreplace "config/config.mk.in", "@MFEM_HOST_CXX@", ENV.cxx

    args = [
      "-DCMAKE_INSTALL_RPATH=#{rpath}",
      "-DMFEM_USE_MPI=YES",
      "-DMFEM_USE_METIS_5=YES",
      "-DMFEM_USE_SUITESPARSE=YES",
      "-DMFEM_USE_NETCDF=NO",
      "-DMFEM_USE_SUPERLU=NO",
    ]
    args << "-DMFEM_USE_LAPACK=YES" if OS.linux?
    system "cmake", "-S", ".", "-B", "build", *args, *std_cmake_args
    system "cmake", "--build", "build"
    system "cmake", "--install", "build"
    pkgshare.install "examples", "data"
  end