EmberRedemptionRequest

Documentation for eth_defi.erc_4626.vault_protocol.ember.deposit_redeem.EmberRedemptionRequest Python class.

class EmberRedemptionRequest

Bases: eth_defi.vault.deposit_redeem.RedemptionRequest

Two-call Ember redemption request: share approval and queue creation.

Attributes summary

`vault`	Vault we are dealing with
`owner`	Owner of the shares
`to`	Receiver of underlying asset
`shares`	Human-readable shares
`raw_shares`	Raw amount of shares
`funcs`	Transactions we need to perform in order to open a redemption
`web3`

Methods summary

`__init__`(vault, owner, to, shares, ...)
`broadcast`([from_, gas])	Broadcast all the transactions in this request.
`parse_redeem_transaction`(tx_hashes)	Parse and validate the `RequestRedeemed` receipt event.

parse_redeem_transaction(tx_hashes)

Parse and validate the RequestRedeemed receipt event.

The event is emitted by the Ember vault even when the outer transaction is a GuardV0 SimpleVault or Lagoon module call. Its timestamp is required to equal the receipt block timestamp at millisecond precision.

Parameters: tx_hashes (list[hexbytes.main.HexBytes]) – Hashes broadcast for this request; the final hash is redemption.
Returns: Validated, restart-safe Ember redemption ticket.
Raises: CannotParseRedemptionTransaction – If the receipt does not contain one matching Ember request event.
Return type: eth_defi.erc_4626.vault_protocol.ember.deposit_redeem.EmberRedemptionTicket

__init__(vault, owner, to, shares, raw_shares, funcs)

Parameters

vault (VaultBase) –
owner (eth_typing.evm.HexAddress) –
to (eth_typing.evm.HexAddress) –
shares (decimal.Decimal) –
raw_shares (int) –
funcs (list[web3.contract.contract.ContractFunction]) –

Return type

None

broadcast(from_=None, gas=1000000)

Broadcast all the transactions in this request.

Parameters

from – Address to send the transactions from
gas (int) – Gas limit to use for each transaction
from_ (eth_typing.evm.HexAddress) –

Returns

List of transaction hashes

Return type

list[hexbytes.main.HexBytes]