{
    "base": {
        "supported_toolchains": ["GCC_ARM"],
        "extra_labels": [],
        "c_lib": "std",
        "supported_c_libs": {
                "arm": ["std"],
                "gcc_arm": ["std", "small"],
                "iar": ["std"]
        },
        "core": "Cortex-M0"
    },
    "b1": {
        "inherits": ["base"],
        "extra_labels_add": ["b1_label"]
    },
    "b2": {
        "inherits": ["base"],
        "extra_labels_add": ["b2_label"]
    },
    "both": {
        "inherits": ["b1", "b2"]
    }
}