code: def _is_bval_type_b(grouped_dicoms):
      
      bval_tag = Tag(0x0018, 0x9087)
      bvec_tag = Tag(0x0018, 0x9089)
      for group in grouped_dicoms:
          if bvec_tag in group[0] and bval_tag in group[0]:
              bvec = common.get_fd_array_value(group[0][bvec_tag], 3)
              bval = common.get_fd_value(group[0][bval_tag])
              if _is_float(bvec[0]) and _is_float(bvec[1]) and _is_float(bvec[2]) and _is_float(bval) and bval != 0:
                  return True
      return False
docs: Check if the bvals are stored in the second of 2 currently known ways for single frame dti