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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read_file(path):
 """Read the file from the given path. If ``path`` is an absolute path, reads a file from the local filesystem. For relative paths, read the file using the storage backend configured using :ref:`CA_FILE_STORAGE <settings-ca-file-storage>`. """

    if os.path.isabs(path):
        with wrap_file_exceptions():
            with open(path, 'rb') as stream:
                return stream.read()

    with wrap_file_exceptions():
        stream = ca_storage.open(path)

    try:
        return stream.read()
    finally:
        stream.close()