How to use the mnemonist/set.intersectionSize function in mnemonist

source: (item, values) => {
    return setHelpers.intersectionSize(values, new Set(item.ExternalSources || [])) !== 0;
  },
};

source: (item, values) => {
    return setHelpers.intersectionSize(values, new Set(item.ExternalSources || [])) !== 0;
  },
};

datacenter: (item, values) => {
    return (
      typeof item.Datacenters === 'undefined' ||
      setHelpers.intersectionSize(values, new Set(item.Datacenters)) > 0
    );
  },
};

return true;
      }
      if (typeIncludes['in-mesh']) {
        if (item.InMesh) {
          return true;
        }
      }
      if (typeIncludes['not-in-mesh']) {
        if (!item.InMesh) {
          return true;
        }
      }
      return false;
    }
    if (sources.length > 0) {
      if (setHelpers.intersectionSize(uniqueSources, new Set(item.ExternalSources || [])) !== 0) {
        return true;
      }
      return false;
    }
    return true;
  };
};