OpenTelemetry SDK
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    Variable SEMATTRS_RPC_JSONRPC_VERSIONConst

    SEMATTRS_RPC_JSONRPC_VERSION: "rpc.jsonrpc.version" = TMP_RPC_JSONRPC_VERSION

    Protocol version as in jsonrpc property of request/response. Since JSON-RPC 1.0 does not specify this, the value can be omitted.