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Opium Documentation
Introduction to Opium
What is Opium
FAQs
Restrictions
Restrictions
Security and Audits
Disclaimer
Audits
Bounty program
Governance
$Opium governance token
For users
Opium.Finance
opium.exchange
FOR DEVELOPERS
Opium addresses
High-level overview
Opium Protocol
Core
Registry
TokenMinter
TokenSpender
TokenSpender
SyntheticAggregator
OracleAggregator
Helpers
Interfaces
Common Errors
sID - Derivative recipe
oID - Oracle recipe
Tutorials
EIP-2547: Composable Multiclass Token
Opium API
SDK
Complex description
Glossary
Opium derivatives
Oracle and derivative recipes
Oracle and derivative registers
Opium margin
Opium swaps (TMtm)
Opium order books
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TokenSpender
It is the ‘asset manager’ of the Opium Protocol. Its core responsibility is to manage the transfer of ERC20 and ERC721O tokens.
Its only consumer contract in the Opium Protocol is the Core contract, which makes use of the TokenSpender for actions such as receiving the required margin (collateral) from a user upon a financial product’s creation and transferring the said margin upon a financial product’s execution according to the payout and the outcome fetched at expiry from the OracleAggregator.
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TokenSpender
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