(Rust) Error Handle: Key Errors immanant

[TreltaSev]

From a client to the server, key errors can happen and I need some way to handle those errors.

#[derive(Deserialize)]
struct cstm_type {
    value: String
}

fn foo() {
    let _str_foo = "{\"value\": \"Yes\"}";
    // Fine

    let _str_foo = "{\"other\": \"Yes\"}";
    // Not Fine Will Throw Error
    
    let bar: cstm_type = serde_json::from_str(_str_foo).unwrap();
}

If the json doesnt follow the structure to a T there will be an error, and thats why I need to catch this error.