Need types for the paginator start token

[AllanZhengYP]

Is your feature request related to a problem? Please describe.
Currently the paginators start token is any type. It can be more specific to individual paginators. For example in paginateScan()'s start token is the type of ExclusiveStartKey. We can use generic to make the pagiator configuration interface include the start token type.

Without this type, users will be confused if they have an existing ExclusiveStartKey, where should they use. Take #1864 (comment) for example.

Describe the solution you'd like
PaginationConfiguration interface can contain a generic like:

export interface PaginationConfiguration<StartToken> {
  client: Client<any, any, any>;
  pageSize?: number;
  startingToken?: StartToken;
}

In individual paginator, the function signature can be:

export interface DynamoDBPaginationConfiguration<StartToken> extends PaginationConfiguration<StartToken> {
  client: DynamoDB | DynamoDBClient;
}
export async function* paginateScan(
  config: DynamoDBPaginationConfiguration<ExclusiveStartKey>,
  input: ScanCommandInput,
  ...additionalArguments: any
): Paginator<ScanCommandOutput>

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

/cc @alexforsyth

[alexforsyth]

+1

[github-actions]

Greetings! We’re closing this issue because it has been open a long time and hasn’t been updated in a while and may not be getting the attention it deserves. We encourage you to check if this is still an issue in the latest release and if you find that this is still a problem, please feel free to comment or open a new issue.

[github-actions]

Greetings! We’re closing this issue because it has been open a long time and hasn’t been updated in a while and may not be getting the attention it deserves. We encourage you to check if this is still an issue in the latest release and if you find that this is still a problem, please feel free to comment or open a new issue.

[github-actions]

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