def METHOD_NAME(self, rom: NintendoDSRom, config: Pmd2Data) -> bool:
    if config.game_version == GAME_VERSION_EOS:
        if config.game_region == GAME_REGION_US:
            return (
                read_u32(rom.arm9, PATCH_CHECK_ADDR_APPLIED_US)
                != PATCH_CHECK_INSTR_APPLIED_US
            )
        if config.game_region == GAME_REGION_EU:
            return (
                read_u32(rom.arm9, PATCH_CHECK_ADDR_APPLIED_EU)
                != PATCH_CHECK_INSTR_APPLIED_EU
            )
    raise NotImplementedError()