Function _mm256_extracti64x2_epi64

#[target_feature(enable = "avx512dq", enable = "avx512vl")]
pub const fn _mm256_extracti64x2_epi64(a: __m256i, IMM8: i32) -> __m128i

Extracts 128 bits (composed of 2 packed 64-bit integers) from a, selected with IMM8, and stores the result in dst.

Intel's Documentation