/**
 * Convex optimistic concurrency helpers for `versionProperty` /
 * `versionAtProperty` (semantics.md § Entity Concurrency).
 *
 * Projection behavior: create seeds version=1; updates compare an optional
 * client-provided expected version, throw on mismatch, then increment.
 */
import type { IREntity } from '../../ir';
/** True when the field is managed by versionProperty / versionAtProperty. */
export declare function isConvexVersionManagedField(entity: IREntity, fieldName: string): boolean;
/** Schema field lines for version metadata not already declared as properties. */
export declare function synthesizeConvexVersionSchemaFields(entity: IREntity): string[];
/** Doc assignments for create inserts (server-seeded; never client args). */
export declare function convexCreateVersionDocLines(entity: IREntity): string[];
export interface ConvexUpdateVersionOcc {
    /** Optional expected-version arg line (indent for args block). */
    argLine: string | null;
    /** Local name for the expected version (same as versionProperty). */
    expectedArgName: string | null;
    /** Lines after doc load, before patch. */
    checkLines: string[];
    /** Fields to merge into the `updates` object. */
    updateFields: string[];
}
/** OCC check + increment for non-create mutations. */
export declare function renderConvexUpdateVersionOcc(entity: IREntity): ConvexUpdateVersionOcc;
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