code: def list_files_in_directory(full_directory_path):
      
      files = list()
      for file_name in __os.listdir(full_directory_path):
          if __os.path.isfile(__os.path.join(full_directory_path, file_name)):
              files.append(file_name)
      return files
docs: List the files in a specified directory
      Args:
          full_directory_path: The full directory path to check, derive from the os module
  
      Returns: returns a list of files