[
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    "delivery_date": "2026-12-25T16:00:00+00:00",
    "internal_id": "future-ETH-USD:ETH-20261225",
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    "end_date": "2026-11-03T08:56:17.990Z"
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    "end_date": "2019-04-27T00:00:00.000Z",
    "internal_id": "future-LTC-USD:LTC-20190426",
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  {
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  {
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  {
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  {
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    "internal_id": "future-LTC-USD:LTC-20230224",
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  {
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    "internal_id": "future-LTC-USD:LTC-20230331",
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    "internal_id": "future-LTC-USD:LTC-20230428",
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  {
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  {
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  {
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  {
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  {
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  {
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    "delivery_date": "2026-12-25T16:00:00+00:00",
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    "end_date": "2026-11-03T08:56:17.990Z"
  },
  {
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  },
  {
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