class_docstr: The abstract base Connection class.
  
      
docstr: Get the filename associated with a connection. Return None if there
  is no associated file.
docstr_tok: ["Get","the","filename","associated","with","a","connection",".","Return","None","if","there","is","no","associated","file","."]
code: def filename(self):
      """Get the filename associated with a connection. Return None if there
      is no associated file.
  
      """
  
      so = ffi.cast("VipsConnection *", self.pointer)
      pointer = vips_lib.vips_connection_filename(so)
      if pointer == ffi.NULL:
          return None
      else:
          return _to_string(pointer)
  
file_path: pyvips/pyvips/vconnection.py
imports: from __future__ import division
  import logging
  import pyvips
  from pyvips import ffi, vips_lib, _to_string
label_desc: Use image node_id 2 for calling the Connection obj's underlying member method code with example usage: obj.filename() and returns: None, _to_string