How to use the snps.__version__ function in snps

if isinstance(df, pd.DataFrame) and len(df) > 0:
        if not buffer and not create_dir(path):
            return ""

        if buffer:
            destination = filename
        else:
            destination = os.path.join(path, filename)
            logger.info("Saving {}".format(os.path.relpath(destination)))

        if prepend_info:
            s = (
                "# Generated by snps v{}, https://pypi.org/project/snps/\n"
                "# Generated at {} UTC\n".format(
                    snps.__version__,
                    datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S"),
                )
            )
        else:
            s = ""

        s += comment

        if "na_rep" not in kwargs:
            kwargs["na_rep"] = "--"

        if buffer:
            destination.write(s)
            df.to_csv(destination, **kwargs)
            destination.seek(0)
        elif atomic:

str
            path to file in output directory if SNPs were saved, else empty str
        """
        filename = self._filename
        if not filename:
            filename = "{}_{}{}".format(
                clean_str(self._snps._source), self._snps.assembly, ".vcf"
            )

        comment = (
            "##fileformat=VCFv4.2\n"
            "##fileDate={}\n"
            '##source="{}; snps v{}; https://pypi.org/project/snps/"\n'.format(
                datetime.datetime.utcnow().strftime("%Y%m%d"),
                self._snps._source,
                snps.__version__,
            )
        )

        reference_sequence_chroms = (
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",

if isinstance(df, pd.DataFrame) and len(df) > 0:
        if not buffer and not create_dir(path):
            return ""

        if buffer:
            destination = filename
        else:
            destination = os.path.join(path, filename)
            logger.info("Saving {}".format(os.path.relpath(destination)))

        if prepend_info:
            s = (
                "# Generated by snps v{}, https://pypi.org/project/snps/\n"
                "# Generated at {} UTC\n".format(
                    snps.__version__,
                    datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S"),
                )
            )
        else:
            s = ""

        s += comment

        if "na_rep" not in kwargs:
            kwargs["na_rep"] = "--"

        if buffer:
            destination.write(s)
            df.to_csv(destination, **kwargs)
            destination.seek(0)
        elif atomic:

source_suffix = ".rst"

# The master toctree document.
master_doc = "index"

# General information about the project.
project = "snps"
copyright = "2019, Andrew Riha"
author = "Andrew Riha"

# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The short X.Y version.
version = snps.__version__

# The full version, including alpha/beta/rc tags.
release = version

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
language = None

# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This patterns also effect to html_static_path and html_extra_path
exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]