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// copy npm:invariant
export class InvariantViolation extends Error {  framesToPop = 1}
function invariant(testValue: false, format: string, ...extra: unknown[]): neverfunction invariant(  testValue: unknown,  format: string,  ...extra: unknown[]): asserts testValue
function invariant(condition: unknown, format: string, ...args: unknown[]) {  if (!condition) {    let argIndex = 0    throw new InvariantViolation(      format.replace(/%s/g, function () {        return String(args[argIndex++])      }),    )  }}
export default invariant