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one_or_many

headless_lms_server::controllers::main_frontend::credit_registration_admin

Function one_or_many 

Source 
fn one_or_many<'de, D, T>(deserializer: D) -> Result<Option<Vec<T>>, D::Error>
where
    D: Deserializer<'de>,
    T: Deserialize<'de>,
Expand description

serde_urlencoded reads a single occurrence of a key as a scalar, not a one-element sequence, so a Vec field otherwise refuses a query string that repeats the parameter zero or one times.