code: def write_bashrc(_path):
      
      cfg_mounts = CFG["container"]["mounts"].value
      cfg_prefix = CFG["container"]["prefixes"].value
  
      path.mkfile_uchroot("/etc/portage/bashrc")
      mounts = uchroot.mounts("mnt", cfg_mounts)
      p_paths, p_libs = uchroot.env(cfg_prefix)
      paths, libs = uchroot.env(mounts)
  
      paths = paths + p_paths
      libs = libs + p_libs
  
      with open(_path, 'w') as bashrc:
          lines = '''
  export PATH="{0}:${{PATH}}"
  export LD_LIBRARY_PATH="{1}:${{LD_LIBRARY_PATH}}"
  '''.format(path.list_to_path(paths), path.list_to_path(libs))
  
          bashrc.write(lines)
docs: Write a valid gentoo bashrc file to :path:.
  
      Args:
          path - The output path of the make.conf