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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read_tvips_header(fh, byteorder, dtype, count, offsetsize):
 """Read TVIPS EM-MENU headers and return as dict."""

    result = {}
    header = fh.read_record(TIFF.TVIPS_HEADER_V1, byteorder=byteorder)
    for name, typestr in TIFF.TVIPS_HEADER_V1:
        result[name] = header[name].tolist()
    if header['Version'] == 2:
        header = fh.read_record(TIFF.TVIPS_HEADER_V2, byteorder=byteorder)
        if header['Magic'] != int(0xaaaaaaaa):
            log.warning('read_tvips_header: invalid TVIPS v2 magic number')
            return {}
        # decode utf16 strings
        for name, typestr in TIFF.TVIPS_HEADER_V2:
            if typestr.startswith('V'):
                s = header[name].tostring().decode('utf16', errors='ignore')
                result[name] = stripnull(s, null='\0')
            else:
                result[name] = header[name].tolist()
        # convert nm to m
        for axis in 'XY':
            header['PhysicalPixelSize' + axis] /= 1e9
            header['PixelSize' + axis] /= 1e9
    elif header.version != 1:
        log.warning('read_tvips_header: unknown TVIPS header version')
        return {}
    return result