Method append_nulls

arrow-array/src/builder/primitive_dictionary_builder.rs:346–348

(&mut self, n: usize)

    /// Append `n` null slots into the builder
    #[inline]
    pub fn append_nulls(&mut self, n: usize) {
        self.keys_builder.append_nulls(n)
    }

    /// Append an `Option` value into the builder
    ///