tests/cases/compiler/declareClassInterfaceImplementation.ts(5,15): error TS2420: Class 'Buffer' incorrectly implements interface 'IBuffer'.
Index signature is missing in type 'Buffer'.
==== tests/cases/compiler/declareClassInterfaceImplementation.ts (1 errors) ====
interface IBuffer {
[index: number]: number;
}
declare class Buffer implements IBuffer {
~~~~~~
!!! error TS2420: Class 'Buffer' incorrectly implements interface 'IBuffer'.
!!! error TS2420: Index signature is missing in type 'Buffer'.
}
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