onApprovalForAll method
Emitted when account
grants or revokes permission to operator
to transfer their tokens, according to approved
.
Implementation
void onApprovalForAll(
void Function(
String account,
String operator,
Event event,
)
callback,
) =>
contract.on(
'ApprovalForAll',
(String account, String operator, dynamic data) => callback(
account,
operator,
Event.fromJS(data),
),
);