def p_xor_expr1(p):
    p[0] = p[1]
get N random headers from a fastq file without reading the
dataset/ETHPy150Open nucleic/enaml/enaml/core/parser.py/p_xor_expr1--crossover with--dataset/ETHPy150Open CGATOxford/cgat/obsolete/subset_fastq.py/write_random_records