code: def make_grasp_phenotype_file(fn, pheno, out):
      
      import subprocess
      c = 'awk -F "\\t" \'NR == 1 || $12 == "{}" \' {} > {}'.format(
          pheno.replace("'", '\\x27'), fn, out)
      subprocess.check_call(c, shell=True)
docs: Subset the GRASP database on a specific phenotype.
      
      Parameters
      ----------
      fn : str
          Path to GRASP database file.
  
      pheno : str
          Phenotype to extract from database.
  
      out : sttr
          Path to output file for subset of GRASP database.