@subsection Expire

Defines an expiry time after which token balances or supply @emph{cannot change}.

A contract defining an expiry @emph{must not} allow changing the expiration time to a time in the past.


@subsubsection ERC165 Interface identifier

@include ../../build/Expire.interface

@subsubsection Solidity interface definition

@include ../../build/contract_Expire.texi

@subsubsection Example implementation

@uref{https://git.grassecon.net/cicnet/erc20-demurrage-token.git}