SygnumVaultHistoricalReader

Documentation for eth_defi.tokenised_fund.sygnum.historical.SygnumVaultHistoricalReader Python class.

class SygnumVaultHistoricalReader

Bases: eth_defi.vault.base.VaultHistoricalReader

Read FILQ supply and its official Chainlink bundle NAV.

FILQ’s price feed is a Chainlink bundle proxy rather than an AggregatorV3 feed. Historical state reads use latestBundle() at the sampled block; the targeted Sygnum backfill separately reads every accepted report event through eth_defi.chainlink.bundle_aggregator and Hypersync.

Create the FILQ state reader.

Parameters

• vault – FILQ adapter.

• stateful – Retained for shared reader compatibility.

Attributes summary

address
first_block

Methods summary

__init__(vault, stateful)	Create the FILQ state reader.
construct_multicalls()	Construct FILQ supply and Chainlink bundle calls.
process_result(block_number, timestamp, ...)	Convert supply and bundle results to a priced history row.

__init__(vault, stateful)

Create the FILQ state reader.

Parameters

• vault (SygnumVault) – FILQ adapter.

• stateful (bool) – Retained for shared reader compatibility.

construct_multicalls()

Construct FILQ supply and Chainlink bundle calls.

Returns

Supply, bundle, report-timestamp and schema-validation calls.

Return type

collections.abc.Iterable[eth_defi.event_reader.multicall_batcher.EncodedCall]

process_result(block_number, timestamp, call_results)

Convert supply and bundle results to a priced history row.

Parameters

• block_number (int) – Historical block number.

• timestamp (datetime.datetime) – Naive UTC block timestamp.

• call_results (list[eth_defi.event_reader.multicall_batcher.EncodedCallResult]) – Multicall results from construct_multicalls().

Returns

FILQ supply, NAV/share and total NAV history row.

Return type

eth_defi.vault.base.VaultHistoricalRead