• Extracts the value of the focused entry, or throw an error if no entry found.

    Type Parameters

    • M

    Parameters

    Returns (<S, T, A, B>(lens) => ((data) => Get1<M, A>))

      • <S, T, A, B>(lens): ((data) => Get1<M, A>)
      • Type Parameters

        • S

        • T

        • A

        • B

        Parameters

        Returns ((data) => Get1<M, A>)

          • (data): Get1<M, A>
          • Parameters

            • data: S

            Returns Get1<M, A>

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