import { AbstractDecimal } from '../AbstractDecimal';
import { DecimalSPI } from '../DecimalSPI';
import { MathContext } from '../../MathContext';
/**
 * Operation that subtract the decimal value b from a.
 *
 * @param {AbstractDecimal} a
 * @param {AbstractDecimal} b
 */
export declare function subtractOp<C, D extends AbstractDecimal<C>>(spi: DecimalSPI<C, D>, a: D, b: D, context?: MathContext): D;
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