const ungroupedBranchMaterials = branchMaterials.reduce((acc, branchMaterial) => {
            const { branchId, materialBalances } = branchMaterial;
            const ungroupedMaterials = materialBalances.map(material => ({ branchId, material }));
            return [...acc, ...ungroupedMaterials];
        }, []);



        const groupedByMaterialName = groupBy(ungroupedBranchMaterials, 'material.materialName');
       

const ungroupedBranchMaterials = branchMaterials.reduce((acc, branchMaterial) => {
            const { branchId, materialBalances } = branchMaterial;
            const ungroupedMaterials = materialBalances.map(material => ({ branchId, material }));
            return [...acc, ...ungroupedMaterials];
        }, []);



        const groupedByMaterialName = groupBy(ungroupedBranchMaterials, 'material.materialName');