MissingLedgerHistoryError - no minLedgerVersion or maxLedgerVersion
There is a ledger gap, but a range should be provided to narrow down the range
of the gap.
MissingLedgerHistoryError
When requesting a tx, if maxLedgerVersion and minLedgerVersion provided, this
means there is a ledger gap in the provided range.
PendingLedgerVersionError:
If maxLedgerVersion provided, check if ledger is ahead of the server's last
validated ledger.
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