/**
 * Small helpers shared by the MM GraphQL proxy reads/writes in `MMApiClient`
 * (paging, chunking, numeric coercion of Hasura's varied renderings).
 */
/** Default rows per GraphQL page for the paged MM proxy reads. */
export declare const DEFAULT_GRAPHQL_PAGE_SIZE = 500;
/** A GraphQL document plus the operation name and variables to post with it. */
export interface GraphqlOperation {
    operationName: string;
    query: string;
    variables?: Record<string, unknown>;
}
/**
 * Preserve null: MM's numeric columns are nullable and "not provided" must stay
 * distinguishable from a real 0 for connector-side selection rules. Non-finite
 * values (NaN, Infinity, unparsable strings) are reported as null too.
 */
export declare function toNullableFiniteNumber(value: unknown): number | null;
/**
 * A page/chunk size option: finite values of at least 1 are floored, anything else falls
 * back. The `>= 1` bound matters — a fractional size such as `0.5` floors to `0`, and a
 * page size of `0` makes `rows.length < pageSize` false for an empty page while
 * `offset += pageSize` leaves the offset unchanged, so the paged reads would loop forever.
 */
export declare function normalizePositiveInteger(value: number | undefined, fallback: number): number;
/**
 * Split a list into chunks of `chunkSize`.
 * @throws {RangeError} when `chunkSize` is not a positive finite number — callers normalize
 *   options with {@link normalizePositiveInteger} first; a silent "one chunk of everything"
 *   would put thousands of ids into a single `_in` list.
 */
export declare function chunkList<T>(items: readonly T[], chunkSize: number): T[][];
/**
 * Strings and finite numbers, trimmed; blanks and anything else dropped; deduped **exactly**
 * (MM compares text exactly); keep
 * first-seen order. Accepts an optional single value plus an optional list.
 */
export declare function collectNonBlankStrings(single: unknown, many: readonly unknown[] | undefined): string[];
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