An HDF5 Region Reference Datatype (Attribute)

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                {
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                        "class": "H5S_SIMPLE", 
                        "dims": [2]
                    }, 
                    "type": {
                        "base": "H5T_STD_REF_DSETREG", 
                        "class": "H5T_REFERENCE"
                    }, 
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                            "class": "H5S_SEL_HYPERSLABS", 
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                                    "opposite": [0, 2]
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                                    "start": [0, 11], 
                                    "opposite": [0, 13]
                                }, 
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                "class": "H5S_NULL"
            }, 
            "type": {
                "base": "H5T_STD_I32LE", 
                "class": "H5T_INTEGER"
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            }, 
            "type": {
                "base": "H5T_STD_I8LE", 
                "class": "H5T_INTEGER"
            }, 
            "value": [
                [84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 0],
                [102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 0], 
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		    "class": "H5L_TYPE_HARD",
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