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Extending Contract Definitions

Contract definition can be extended, in the same sense a class can inherit from another class in Object-oriented programming, by using the extendContract function:
import {
createContract,
extendContract,
snip20Def,
Snip20Contract
} from '@stakeordie/griptape.js';
const myDef = { ... };
// The result definition contains all queries and messages from the
// `Snip20Def` plus all queries and messages from `myDef`
const extendedDef = extendContract(snip20Def, myDef);
createContractClient({
...
definition: extendedDef
});
All common methods between contract definitions are overrided by the methods on the second parameters of the extendContract function.