@subsection TokenVend

This interface defines the mechanism for which a specific ERC20 token may be exchanged for a different ERC20 token.

A typical use-case is generation of voting tokens based on a momentary voucher balance. This is especially useful if the original ERC20 token is subject to decay (demurrage).

The tokens used for exchange @strong{SHOULD} be locked for the full duration of holding the vended tokens.

The withdrawal function may or may not allow partial withdrawals.

@table @dfn
@item ERC165 Interface identifier
@include ../../build/TokenVend.interface
@item Solidity interface definition
@include ../../build/contract_TokenVend.texi
@item Reference implementations
@itemize
@item
@uref{git://holbrook.no/erc20-vend.git,}
@end itemize
@end table