import { ParserRuleContext } from 'antlr4ts';
import { TypeRegistry } from '../type/TypeRegistry.js';
import { BaseListener } from './baseListener.js';
export declare class NonVoidMethodCallMutator extends BaseListener {
    constructor(typeRegistry?: TypeRegistry);
    enterLocalVariableDeclarationStatement(ctx: ParserRuleContext): void;
    enterAssignExpression(ctx: ParserRuleContext): void;
    private processVariableDeclarator;
    private isMethodCall;
    private mutateMethodCallExpression;
    private generateDefaultValue;
}