Returns a list of all current and upcoming option contract expiration dates for a particular symbol.
| Name | Type | Description | Notes |
|---|---|---|---|
| symbol | str | The option symbol, corresponding to the underlying security. | |
| after | str | Return option contract expiration dates after this date. | [optional] |
| before | str | Return option contract expiration dates before this date. | [optional] |
| include_related_symbols | bool | Include related symbols that end in a 1 or 2 because of a corporate action. | [optional] |
| Name | Type | Description |
|---|---|---|
| expirations | list[str] | A list of option expiration dates in descending order |
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