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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _fulfillment_from_details(data, _depth=0):
 """Load a fulfillment for a signing spec dictionary Args: data: tx.output[].condition.details dictionary """

    if _depth == 100:
        raise ThresholdTooDeep()

    if data['type'] == 'ed25519-sha-256':
        public_key = base58.b58decode(data['public_key'])
        return Ed25519Sha256(public_key=public_key)

    if data['type'] == 'threshold-sha-256':
        threshold = ThresholdSha256(data['threshold'])
        for cond in data['subconditions']:
            cond = _fulfillment_from_details(cond, _depth+1)
            threshold.add_subfulfillment(cond)
        return threshold

    raise UnsupportedTypeError(data.get('type'))