code: def write_file(fname, info):
      
      with open(fname, 'w') as outfile:
          # File header
          outfile.write('# Copyright (c) 2018 MetPy Developers.\n')
          outfile.write('# Distributed under the terms of the BSD 3-Clause License.\n')
          outfile.write('# SPDX-License-Identifier: BSD-3-Clause\n\n')
          outfile.write('# flake8: noqa\n')
          outfile.write('# Generated file -- do not modify\n')
  
          # Variable descriptions
          outfile.write('descriptions = {')
          outdata = ',\n                '.join('"{name}": "{desc}"'.format(
              **i) for i in info if need_desc(i))
          outfile.write(outdata)
          outfile.write('}\n\n')
  
          # Now the struct format
          outfile.write('fields = [')
          outdata = ',\n          '.join('({fname}, "{fmt}")'.format(
              fname=field_name(i), **i) for i in info)
          outfile.write(outdata)
          outfile.write(']\n')
docs: Write out the generated Python code.