Trait env_extractor::CanExtractRequired

pub trait CanExtractRequired<A> {
    type Err;
    fn get_required(&self) -> Result<A, Self::Err>;
}

Associated Types

type Err

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Required methods

fn get_required(&self) -> Result<A, Self::Err>

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Implementors

impl<A: FromStr> CanExtractRequired<A> for SingleValue where
    <A as FromStr>::Err: Debug, 

type Err = Error<<A as FromStr>::Err>

fn get_required(&self) -> Result<A, Self::Err>

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