You're seeing just the function close, go back to SlackWeb.Im module for more information.
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close(channel, optional_params \\ %{})

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Close a direct message channel.

Required Params

  • channel - Direct message channel to close.

Errors the API can return:

  • channel_not_found - Value passed for channel was invalid.
  • user_does_not_own_channel - Calling user does not own this DM channel.