ERC20Diamond.sol

import "../DiamondMod.sol" as DiamondMod;

contract ExampleDiamond {
    /**
     * @notice Struct to hold a facet address and its function selectors.
     * struct FacetFunctions {
     *     address facet;
     *     bytes4[] selectors;
     * }
     */     
     
    /**
     * @notice Initializes the diamond contract with facets.
     * @dev Adds all provided facet functions to the diamond's function/selector mapping.     
     * @param _facetFunctions Array of facet addresses and their corresponding function selectors to add to the diamond.     
     */
    constructor(DiamondMod.FacetFunctions[] memory _facetFunctions) {
        /**
         * Here we add all the ERC20 functions from the ERC20Facet.
         * Here we add the diamondUpgrade function.
         */
        DiamondMod.addFacetFunctions(facetFunctions);        
    }

    fallback() external payable {
        DiamondMod.diamondFallback();
    }

    receive() external payable {}
}