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: policies_dir.rb
    path of file: ./repos/chef/lib/chef/chef_fs/file_system/chef_server
    
    the code of the file until where you have to start completion: #
# Author:: John Keiser (<jkeiser@chef.io>)
# C
    
          def create_child(name, file_contents)
            # Parse the contents to ensure they are valid JSON
            begin
              object = Chef::JSONCompat.parse(file_contents)
            rescue Chef::Exceptions::JSON::ParseError => e
              raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e, "Parse error reading JSON creating child '#{name}': #{e}")
            end