import { Optionality } from "@glion/utils";
import type { ProfileStore } from "../profiles";
/** Raw shape exported by generated field modules. */
export type FieldModule = Readonly<{
    segmentId: string;
    fields: readonly FieldProfile[];
}>;
/**
 * HL7v2 repetition of a field, the RP/# column of a segment attribute table:
 * the most occurrences the field may have, or `"unbounded"`.
 */
export type FieldRepetitions = number | "unbounded";
/** A field of a segment, one row of its HL7v2 segment attribute table. */
export type FieldProfile = Readonly<{
    sequence: number;
    id: string;
    /** Absent when the standard records no optionality for the field. */
    optionality?: Optionality;
    /** `1` when the field does not repeat. */
    repetitions: FieldRepetitions;
    /** Absent on a withdrawn field the standard gives no datatype. */
    datatype?: string;
    maxLength?: number;
    table?: string;
    name?: string;
    item?: string;
}>;
/**
 * Compiled field definition for a segment.
 * Returned by `profiles.fields.load()`.
 */
export type FieldDefinition = Readonly<{
    segmentId: string;
    /** O(1) lookup of field profile by sequence number. */
    bySequence: ReadonlyMap<number, FieldProfile>;
    /** The sequences of the fields whose optionality is `R`. */
    requiredSequences: ReadonlySet<number>;
}>;
/** The loader of segment field profiles. */
export declare const fields: ProfileStore<FieldDefinition>;
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