import type { IfcSchemaVersion } from './schema-converter.js';
export interface RetypeArgsResult {
    tokens: string[];
    /** True when the layout was resolved from schema; false ⇒ keyword-only swap. */
    resolved: boolean;
}
/**
 * Re-lay-out an entity's STEP argument tokens for a new class.
 *
 * `argTokens` are already-serialized STEP fragments (as produced by
 * {@link splitTopLevelArgs}). Returns a fresh token array in the target
 * class's attribute order. When source or target layout can't be resolved
 * from the schema (vendor extension, malformed), `resolved` is false and the
 * caller should fall back to a keyword-only swap.
 */
export declare function retypeArgTokens(argTokens: string[], sourceType: string, newType: string, predefinedType: string | null | undefined, schema: IfcSchemaVersion): RetypeArgsResult;
/**
 * Rewrite a raw STEP entity line to a new IFC class.
 *
 * `entityText` is a single STEP record (`#123=IFCFOO(...);`, possibly with a
 * trailing newline). Returns the rewritten line, or the original unchanged if
 * it can't be parsed.
 *
 * `schema` is the schema the raw text is in (the source schema). When the
 * exporter is ALSO converting to a different output schema, the retype runs
 * first in the source schema and the converter runs after. A narrow edge
 * follows from that ordering: if the target class gains a `PredefinedType`
 * slot only in the OUTPUT schema (e.g. IFC2X3 `IfcColumn` → IFC4 `IfcColumn`),
 * an explicit override has no slot to land in and is dropped. Retyping within
 * a single schema (the common case) is unaffected.
 */
export declare function retypeStepLine(entityText: string, sourceType: string, newType: string, predefinedType: string | null | undefined, schema: IfcSchemaVersion): string;
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