/**
 * Union type emission
 */
import { IrType } from "@tsonic/frontend";
import { EmitterContext } from "../types.js";
import type { CSharpTypeAst } from "../core/format/backend-ast/types.js";
/**
 * Emit union types as CSharpTypeAst: nullable (T?), compiler-owned union carrier, or object
 */
export declare const emitUnionType: (type: Extract<IrType, {
    kind: "unionType";
}>, context: EmitterContext) => [CSharpTypeAst, EmitterContext];
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