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    Type:Bug 
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    Resolution: Gone away
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    Priority:Unknown 
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    None
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    Affects Version/s: None
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    Component/s: None
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Sample Code:
Unable to find source-code formatter for language: rust. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
let sequence = format!("locations.{}.options", data.location_id); let p_sequence = format!("$locations.{}.options", data.location_id); let update_result = db .collection("enquiries") .update_one( doc! { "_id": &data._id }, doc! { "$set": { sequence: doc! { "$concatArrays": [ {"$slice":[ &p_sequence, data.option_id ]}, {"$slice":[ &p_sequence, { "$add":[1, data.option_id]}, {"$size": &p_sequence}]} ] } } }, None, ) .await?;
Resulting Error:
Err(
    Error {
        kind: WriteError(
            WriteError(
                WriteError {
                    code: 52,
                    code_name: None,
                    message: "The dollar ($) prefixed field \'$concatArrays\' in \'locations.0.options.$concatArrays\' is not valid for storage.",
                },
            ),
        ),
        labels: [],
    },
)