Does TypeScript @peculiar/asn1-schema library always wraps objects into ASN.1 SEQUENCE?

I have following class in TypeScript:

import {
    AsnSerializer
} from '@peculiar/asn1-schema';

export class Element {
    constructor(
        public value: BigInteger
    ) {}

    public ToASN1(): ArrayBuffer {
        const element = new Element();
        element.value = new Uint8Array(this.value.toByteArray()).buffer;
        try {
            return new Uint8Array(AsnSerializer.serialize(element));
        } catch (error) {
            // handle
        }
    }

And the toASN1 method returns ASN.1 output as:

output ::= SEQUENCE {
    INTEGER
}

But I don’t want that outer SEQUENCE to present and instead I only wish to have:

output ::= INTEGER

Is it achievable at all? I have found some links in the source code, but dunno is that indeed hardcoded into that library and therefore not changeable at all?