How to use the @igo2/utils.ObjectUtils.resolve function in @igo2/utils

getValue(row, key) {
    return ObjectUtils.resolve(row, key);
  }

return data.sort((a, b) => {
      const propertyA: number | string = ObjectUtils.resolve(
        a,
        this._sort.active
      );
      const propertyB: number | string = ObjectUtils.resolve(
        b,
        this._sort.active
      );

      return ObjectUtils.naturalCompare(
        propertyB,
        propertyA,
        this._sort.direction
      );
    });
  }

public getConfig(key: string): any {
    return ObjectUtils.resolve(this.config, key);
  }

public getConfig(key: string): any {
    return ObjectUtils.resolve(this.config, key);
  }

return data.sort((a, b) => {
      const propertyA: number | string = ObjectUtils.resolve(
        a,
        this._sort.active
      );
      const propertyB: number | string = ObjectUtils.resolve(
        b,
        this._sort.active
      );

      return ObjectUtils.naturalCompare(
        propertyB,
        propertyA,
        this._sort.direction
      );
    });
  }

public getConfig(key: string): any {
    return ObjectUtils.resolve(this.config, key);
  }

        .map(c => ObjectUtils.resolve(item, c.name))
        .join(' ')