/**
 * GmshParser — Parse GMSH 2.x ASCII `.msh` into unstructured tet meshes.
 *
 * MVP: `$Nodes` + `$Elements` with 4-node tetrahedra (type `4`). Other element
 * types are skipped. Node tags are remapped to a dense 0-based index range.
 *
 * @see VTKImporter — compatible `VTKUnstructuredResult` shape for solvers.
 */
import type { VTKUnstructuredResult } from './VTKImporter';
/** Raised when input cannot be interpreted as a supported mesh. */
export declare class MeshImportError extends Error {
    readonly code: 'GMSH_INVALID' | 'GMSH_UNSUPPORTED';
    constructor(message: string, code: 'GMSH_INVALID' | 'GMSH_UNSUPPORTED');
}
/**
 * Parse GMSH 2.x ASCII content into vertices + linear tetrahedra connectivity.
 */
export declare function parseGmsh(text: string): VTKUnstructuredResult;
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