class_docstr: Container for a bunch of Fortran routines.
      
code: def __init__(self, src_dirs):
      self._src_dirs = src_dirs
      self.names_to_routines = {}
  
imports: import sys
  import os
  import re
  import subprocess
  import shutil
  import fortran
  import clapack_scrub
label_desc: Use image node_id 1 to create a new FortranLibrary object  with example: obj = FortranLibrary(src_dirs)