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contracts/token/ERC721/extensions/draft-ERC721VotesUpgradeable.sol

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+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0-rc.0) (token/ERC721/extensions/draft-ERC721Votes.sol)
+
+pragma solidity ^0.8.0;
+
+import "../ERC721Upgradeable.sol";
+import "../../../governance/utils/VotesUpgradeable.sol";
+import "../../../proxy/utils/Initializable.sol";
+
+/**
+ * @dev Extension of ERC721 to support voting and delegation as implemented by {Votes}, where each individual NFT counts
+ * as 1 vote unit.
+ *
+ * Tokens do not count as votes until they are delegated, because votes must be tracked which incurs an additional cost
+ * on every transfer. Token holders can either delegate to a trusted representative who will decide how to make use of
+ * the votes in governance decisions, or they can delegate to themselves to be their own representative.
+ *
+ * _Available since v4.5._
+ */
+abstract contract ERC721VotesUpgradeable is Initializable, ERC721Upgradeable, VotesUpgradeable {
+    function __ERC721Votes_init() internal onlyInitializing {
+        __Context_init_unchained();
+        __ERC165_init_unchained();
+        __Votes_init_unchained();
+        __ERC721Votes_init_unchained();
+    }
+
+    function __ERC721Votes_init_unchained() internal onlyInitializing {
+    }
+    /**
+     * @dev Adjusts votes when tokens are transferred.
+     *
+     * Emits a {Votes-DelegateVotesChanged} event.
+     */
+    function _afterTokenTransfer(
+        address from,
+        address to,
+        uint256 tokenId
+    ) internal virtual override {
+        _transferVotingUnits(from, to, 1);
+        super._afterTokenTransfer(from, to, tokenId);
+    }
+
+    /**
+     * @dev Returns the balance of `account`.
+     */
+    function _getVotingUnits(address account) internal virtual override returns (uint256) {
+        return balanceOf(account);
+    }
+    uint256[50] private __gap;
+}