Not terribly important but if someone is looking for something to optimize, this is noticaby slow and varrious monitoring might like to call it a lot.

{
    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "getblock \"hash\" ( verbose )\n"
            "\nIf verbose is false, returns a string that is serialized, hex-encoded data for block 'hash'.\n"
            "If verbose is true, returns an Object with information about block <hash>.\n"
            "\nArguments:\n"
            "1. \"hash\"          (string, required) The block hash\n"
            "2. verbose           (boolean, optional, default=true) true for a json object, false for the hex encoded data\n"
            "\nResult (for verbose = true):\n"
            "{\n"
            "  \"hash\" : \"hash\",     (string) the block hash (same as provided)\n"
            "  \"confirmations\" : n,   (numeric) The number of confirmations, or -1 if the block is not on the main chain\n"
            "  \"size\" : n,            (numeric) The block size\n"
            "  \"height\" : n,          (numeric) The block height or index\n"
            "  \"version\" : n,         (numeric) The block version\n"
            "  \"versionHex\" : \"00000000\", (string) The block version formatted in hexadecimal\n"
            "  \"merkleroot\" : \"xxxx\", (string) The merkle root\n"