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use serde::{Deserializer, Deserialize};
pub fn deserialize_opt_i32_with_parse<'de, D>(deserializer: D) -> Result<Option<i32>, D::Error>
where D: Deserializer<'de> {
let buf = String::deserialize(deserializer)?;
buf.parse().map(Some).map_err(serde::de::Error::custom)
}
pub fn deserialize_opt_bool_from_string<'de, D>(deserializer: D) -> Result<Option<bool>, D::Error>
where D: Deserializer<'de> {
let buf = String::deserialize(deserializer)?;
if buf == "" {
return Ok(None);
}
Ok(Some(buf == "true"))
}