`executeUpdateExpression` matches key attibutes with variable name in Model Class instead of @rangeKey({attributeName: '<>'})

[krishmakochhar]

If your model is like this :

export class Model {
    @hashKey({attributeName: 'HashKey'})
    private _hashKey!: string;

    @rangeKey({attributeName: 'SortKey'})
    private _sortKey!: string;

And if I try to use the executeUpdateExpression method as :

const itemKey = {
            HashKey: <some-key>,
            SortKey: <some-key>,
        };
        await this.mapper.executeUpdateExpression(updateExpression, itemKey, noArgsConstructor);

We get “The provided key element does not match the schema” error. But it works fine if use this instead :

const itemKey = {
            _hashKey: <some-key>,
            _sortKey: <some-key>,
        };
        await this.mapper.executeUpdateExpression(updateExpression, itemKey, noArgsConstructor);