def get_valid_breeds():
 if ('breeds' in SIGNATURE_CACHE):
  return SIGNATURE_CACHE['breeds'].keys()
 else:
  return []

def get_valid_breeds ( ) : if ( 'breeds' in SIGNATURE_CACHE ) : return SIGNATURE_CACHE [ 'breeds' ] . keys ( ) else : return [ ]
return a list of valid breeds found in the import signatures .