import { IfcResourceLevelRelationship } from "./index.js";
import { IfcMaterial } from "./index.js";
import EntityTypesIfc from "./entity_types_ifc.gen.js";
import StepEntityInternalReference from "../../step/step_entity_internal_reference.js";
import StepEntityBase from "../../step/step_entity_base.js";
import StepModelBase from "../../step/step_model_base.js";
export declare class IfcMaterialRelationship extends IfcResourceLevelRelationship {
    get type(): EntityTypesIfc;
    private RelatingMaterial_?;
    private RelatedMaterials_?;
    private Expression_?;
    get RelatingMaterial(): IfcMaterial;
    get RelatedMaterials(): Array<IfcMaterial>;
    get Expression(): string | null;
    constructor(localID: number, internalReference: StepEntityInternalReference<EntityTypesIfc>, model: StepModelBase<EntityTypesIfc, StepEntityBase<EntityTypesIfc>>, multiReference?: StepEntityInternalReference<EntityTypesIfc>[]);
    static readonly query: EntityTypesIfc[];
    static readonly expectedType: EntityTypesIfc;
}
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