Upload metadata.json

metadata.json

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+{"sample_rate": 16000, "domain_tags": ["testing"], "short_description": "Hardcoded test model for multilabel usage", "long_description": "this model is being used to test multilabel usage", "tags": ["testing"], "effect_type": "waveform-to-labels", "multichannel": false, "labels": ["a", "b", "c", "d"]}