Attribute

{
    "$schema": "https://json-schema.org/draft/2020-12/schema#",
    "$id": "https://hdfgroup.org/schemas/hdf5/json/attribute.schema.json",
    "title": "HDF5/JSON Attribute Schema",
    "description": "JSON Schema describing HDF5 attribute.",
    "type": "object",
    "$defs": {
        "attributes": {
            "description": "HDF5 attributes attached to an HDF5 group or dataset.",
            "type": "array",
            "items": {
                "$ref": "#/$defs/attribute"
            }
        },
        "attribute": {
            "description": "HDF5 attribute.",
            "type": "object",
            "properties": {
                "name": {
                    "type": "string",
                    "minLength": 1
                },
                "type": {
                    "$ref": "datatypes.schema.json#/$defs/datatype"
                },
                "shape": {
                    "description": "HDF5 attribute's shape.",
                    "type": "object",
                    "$ref": "dataspaces.schema.json#/$defs/dataspace"
                },
                "creationProperties": {
                    "type": "object",
                    "properties": {
                        "nameCharEncoding": {
                            "type": "string",
                            "enum": [
                                "H5T_CSET_ASCII",
                                "H5T_CSET_UTF8"
                            ]
                        }
                    },
                    "additionalProperties": false,
                    "required": [
                        "nameCharEncoding"
                    ]
                },
                "value": {
                    "oneOf": [
                        {
                            "type": "string"
                        },
                        {
                            "type": "number"
                        },
                        {
                            "type": "array"
                        },
                        {
                            "type": "null"
                        }
                    ]
                }
            }
        }
    }
}