import type { Delimiters, Root } from "@rethinkhealth/hl7v2-ast";
import type { Plugin } from "unified";
export interface HL7v2EncodeOptions {
    delimiters?: Partial<Delimiters>;
}
/**
 * Unified plugin to encode special characters as HL7v2 escape sequences
 * in subcomponent literals.
 *
 * - Encodes delimiter characters: | → \F\, ^ → \S\, ~ → \R\, & → \T\
 * - Encodes escape character: \ → \E\
 * - Encodes segment delimiter: \r → \.br\
 * - Skips MSH-1 and MSH-2 (they define the delimiters and must not be escaped)
 *
 * Delimiter resolution order:
 * 1. `options.delimiters` (explicit override)
 * 2. `file.data.delimiters` (set by hl7v2-annotate-delimiters)
 * 3. `DEFAULT_DELIMITERS`
 */
export declare const hl7v2EncodeEscapes: Plugin<[HL7v2EncodeOptions?], Root, Root>;
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