How to use the @sindresorhus/fnv1a function in @sindresorhus/fnv1a

function getCacheKey(operation) {
    const { key } = operation
    const cacheKey = fnv1a(
      '' + url + JSON.stringify(getFetchOptions(operation) + key),
    )
    return cacheKey
  }

private createQuery(query: DocumentNode): string {
		if (this.queryCache.has(query)) {
			return this.queryCache.get(query)!;
		}

		const queryString = print(addTypenames(query));
		this.queryCache.set(query, queryString);

		const queryId = String(hash(queryString));
		this.queryIds.set(query, queryId);
		this.dataCache.set(queryId, new Map());

		return queryString;
	}

function generateKey(keyObj) {
  return fnv1a(JSON.stringify(keyObj)).toString(36)
}

return (text, options) => {
        const key = hash(`${text}${JSON.stringify(options)}`);
        if (cache[key] !== undefined) {
            return cache[key];
        }

        sandbox.font = Text.getFontDefinition(options);
        const lines = formatString(text);
        const height = options.fontSize * options.lineHeight * lines.length;
        const width = lines.reduce((max, line) => Math.max(max, sandbox.measureText(line).width), 0);
        const result = {
            width,
            height,
        };
        cache[key] = result;
        return result;
    };
})();