code: def open(
      path, mode="r", destpath=os.curdir, encoding=None, newline=None
  ):
      """
      Open `path` with `mode` and return the file object.
  
      If ``path`` is an URL, it will be downloaded, stored in the
      `DataSource` `destpath` directory and opened from there.
  
      Parameters
      ----------
      path : str
          Local file path or URL to open.
      mode : str, optional
          Mode to open `path`. Mode 'r' for reading, 'w' for writing, 'a' to
          append. Available modes depend on the type of object specified by
          path.  Default is 'r'.
      destpath : str, optional
          Path to the directory where the source file gets downloaded to for
          use.  If `destpath` is None, a temporary directory will be created.
          The default path is the current directory.
      encoding : {None, str}, optional
          Open text file with given encoding. The default encoding will be
          what `io.open` uses.
      newline : {None, str}, optional
          Newline to use when reading text file.
  
      Returns
      -------
      out : file object
          The opened file.
  
      Notes
      -----
      This is a convenience function that instantiates a `DataSource` and
      returns the file object from ``DataSource.open(path)``.
  
      """
  
      ds = DataSource(destpath)
      return ds.open(path, mode, encoding=encoding, newline=newline)
  
imports: import os
  import io
  from .._utils import set_module
label_desc: Use image node_id 2 for calling a global function with example usage: open(path, mode, destpath, encoding, newline) and returns: ds