import { Factory } from './factory';
import { BooleanSinkSpec, BooleanSourceSpec, ColorSourceSpec, NumberSinkSpec, NumberSourceSpec, SeriesSourceSpec, Spec, StatusSourceSpec, StringSinkSpec, StringSourceSpec, Telem } from './telem';
export declare const noopBooleanSinkSpec: BooleanSinkSpec;
export declare const noopNumericSinkSpec: NumberSinkSpec;
export declare const noopBooleanSourceSpec: BooleanSourceSpec;
export declare const noopNumericSourceSpec: NumberSourceSpec;
export declare const noopStringSinkSpec: StringSinkSpec;
export declare const noopStringSourceSpec: StringSourceSpec;
export declare const noopStatusSourceSpec: StatusSourceSpec;
export declare const noopColorSourceSpec: ColorSourceSpec;
export declare const noopSeriesSourceSpec: SeriesSourceSpec;
export declare class NoopFactory implements Factory {
    type: string;
    create(spec: Spec): Telem | null;
}
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