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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 m2o_to_m2m(cr, model, table, field, source_field):
 """ Recreate relations in many2many fields that were formerly many2one fields. Use rename_columns in your pre-migrate script to retain the column's old value, then call m2o_to_m2m in your post-migrate script. :param model: The target model registry object :param table: The source table :param field: The field name of the target model :param source_field: the many2one column on the source table. .. versionadded:: 7.0 .. deprecated:: 8.0 Use :func:`m2o_to_x2m` instead. """

    return m2o_to_x2m(cr, model, table, field, source_field)