// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: google/devtools/remoteexecution/v1test/remote_execution.proto

package com.google.devtools.remoteexecution.v1test;

/**
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 * The size is considered to be an integral part of the digest and cannot be
 * separated. That is, even if the `hash` field is correctly specified but
 * `size_bytes` is not, the server MUST reject the request.
 * The reason for including the size in the digest is as follows: in a great
 * many cases, the server needs to know the size of the blob it is about to work
 * with prior to starting an operation with it, such as flattening Merkle tree
 * structures or streaming it to a worker. Technically, the server could
 * implement a separate metadata store, but this results in a significantly more
 * complicated implementation as opposed to having the client specify the size
 * up-front (or storing the size along with the digest in every message where
 * digests are embedded). This does mean that the API leaks some implementation
 * details of (what we consider to be) a reasonable server implementation, but
 * we consider this to be a worthwhile tradeoff.
 * When a `Digest` is used to refer to a proto message, it always refers to the
 * message in binary encoded form. To ensure consistent hashing, clients and
 * servers MUST ensure that they serialize messages according to the following
 * rules, even if there are alternate valid encodings for the same message.
 * - Fields are serialized in tag order.
 * - There are no unknown fields.
 * - There are no duplicate fields.
 * - Fields are serialized according to the default semantics for their type.
 * Most protocol buffer implementations will always follow these rules when
 * serializing, but care should be taken to avoid shortcuts. For instance,
 * concatenating two messages to merge them may produce duplicate fields.
 * </pre>
 *
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   * The reason for including the size in the digest is as follows: in a great
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   * structures or streaming it to a worker. Technically, the server could
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