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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 get_version_name(version_const):
 """\ Returns the version name. For version 1 .. 40 it returns the version as integer, for Micro QR Codes it returns a string like ``M1`` etc. :raises: VersionError: In case the `version_constant` is unknown. """

    if 0 < version_const < 41:
        return version_const
    for name, v in consts.MICRO_VERSION_MAPPING.items():
        if v == version_const:
            return name
    raise VersionError('Unknown version constant "{0}"'.format(version_const))