openzeppelin_relayer/utils/serde/
field_as_string.rs

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use serde::{de, Deserialize, Deserializer};
use std::str::FromStr;

pub fn deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>
where
    T: FromStr,
    D: Deserializer<'de>,
    <T as FromStr>::Err: std::fmt::Debug,
{
    let s: String = String::deserialize(deserializer)?;
    s.parse()
        .map_err(|e| de::Error::custom(format!("Parse error: {e:?}")))
}