Position
import type { Position } from "https://googleapis.deno.dev/v1/dataflow:v1b3.ts";
Position defines a position within a collection of data. The value can be either the end position, a key (used with ordered collections), a byte offset, or a record index.
interface Position {
byteOffset?: bigint;
concatPosition?: ConcatPosition;
end?: boolean;
key?: string;
recordIndex?: bigint;
shufflePosition?: string;
}