def METHOD_NAME():
    """Returns the version of the installed ETS Tool Suite as a
    decimal number.  This version comes from the ETS_VER #define in
    the embkern.h header.  For example, '#define ETS_VER 1010' (which
    is what Phar Lap 10.1 defines) would cause this method to return
    1010. Phar Lap 9.1 does not have such a #define, but this method
    will return 910 as a default.
    Raises UserError if no installed version of Phar Lap can
    be found."""
    include_path = os.path.join(getPharLapPath(), os.path.normpath("include/embkern.h"))
    if not os.path.exists(include_path):
        raise SCons.Errors.UserError("Cannot find embkern.h in ETS include directory.\nIs Phar Lap ETS installed properly?")
    mo = REGEX_ETS_VER.search(open(include_path, 'r').read())
    if mo:
        return int(mo.group(1))
    # Default return for Phar Lap 9.1
    return 910