@exromany/lido-csm-sdk/dist/esm/rewards-sdk/find-proof.js

[](https://github.com/lidofinance/lido-csm-sdk/blob/main/LICENSE.txt) [](h

import { findIndexAndLeaf } from '../common/utils/find-index-and-leaf.js';
export const EMPTY_PROOF = { proof: [], shares: 0n };
export const findProofAndAmount = (tree, nodeOperatorId) => {
    if (!tree)
        return EMPTY_PROOF;
    const [index, leaf] = findIndexAndLeaf(tree, (leaf) => leaf[0] === nodeOperatorId);
    if (index !== undefined && leaf) {
        return {
            proof: tree.getProof(index),
            shares: leaf[1],
        };
    }
    return EMPTY_PROOF;
};
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