def lv2_plugins_data(self):
import lilvlib<EOL>return lilvlib.get_plugin_info_helper('<STR_LIT>')<EOL>
Generates a file with all plugins data info. It uses the `lilvlib`_ library.

PluginsManager can manage lv2 audio plugins through previously obtained metadata
from the lv2 audio plugins descriptor files.

To speed up usage, data has been pre-generated and loaded into this piped packet.
This avoids a dependency installation in order to obtain the metadata.

However, this measure makes it not possible to manage audio plugins that were not
included in the list.

To work around this problem, this method - using the `lilvlib`_ library - can get
the information from the audio plugins. You can use this data to generate a file
containing the settings::

    >>> builder = Lv2EffectBuilder()
    >>> plugins_data = builder.lv2_plugins_data()

    >>> import json
    >>> with open('plugins.json', 'w') as outfile:
    >>>     json.dump(plugins_data, outfile)

The next time you instantiate this class, you can pass the configuration file::

    >>> builder = Lv2EffectBuilder(os.path.abspath('plugins.json'))

Or, if you want to load the data without having to create a new instance of this class::

    >>> builder.reload(builder.lv2_plugins_data())

.. warning::

    To use this method, it is necessary that the system has the `lilv`_ in a version equal
    to or greater than `0.22.0`_. Many linux systems currently have previous versions on
    their package lists, so you need to compile them manually.

    In order to ease the work, Pedal Pi has compiled lilv for some versions of linux.
    You can get the list of .deb packages in https://github.com/PedalPi/lilvlib/releases.

    .. code-block:: bash

        # Example
        wget https://github.com/PedalPi/lilvlib/releases/download/v1.0.0/python3-lilv_0.22.1.git20160613_amd64.deb
        sudo dpkg -i python3-lilv_0.22.1+git20160613_amd64.deb


    If the architecture of your computer is not contemplated, moddevices provided
    a script to generate the package.
    Go to https://github.com/moddevices/lilvlib to get the script in its most up-to-date version.

.. _lilvlib: https://github.com/moddevices/lilvlib
.. _0.22.0: http://git.drobilla.net/cgit.cgi/lilv.git/tag/?id=v0.22.0
.. _lilv: http://drobilla.net/software/lilv

:return list: lv2 audio plugins metadata