Eliminate TypeScript Errors and Convert foundational .js files to .ts · HarperFast/harper@38384a5

Generic type 'Iterable<T, TReturn, TNext>' requires between 1 and 3 type arguments.

Generic type 'AsyncIterator<T, TReturn, TNext>' requires between 1 and 3 type arguments.

Generic type 'AsyncIterable<T, TReturn, TNext>' requires between 1 and 3 type arguments.

Generic type 'Iterator<T, TReturn, TNext>' requires between 1 and 3 type arguments.

Generic type 'Iterable<T, TReturn, TNext>' requires between 1 and 3 type arguments.

Export assignment cannot be used when targeting ECMAScript modules. Consider using 'export default' or another module format instead.

Cannot find module 'xlsx' or its corresponding type declarations.

Argument of type 'RocksIndexStore' is not assignable to parameter of type 'string | Store'.

Property 'encoder' does not exist on type 'Database<any, Key>'.

Argument of type 'OpenDBIObject' is not assignable to parameter of type 'DatabaseOptions'.

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