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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 _render_conditions(conditions):
 """Render the conditions part of a query. Parameters conditions : list A list of dictionary items to filter a table. Returns ------- str A string that represents the "where" part of a query See Also -------- render_query : Further clarification of `conditions` formatting. """


    if not conditions:
        return ""

    rendered_conditions = []

    for condition in conditions:
        field = condition.get('field')
        field_type = condition.get('type')
        comparators = condition.get('comparators')

        if None in (field, field_type, comparators) or not comparators:
            logger.warn('Invalid condition passed in: %s' % condition)
            continue

        rendered_conditions.append(
            _render_condition(field, field_type, comparators))

    if not rendered_conditions:
        return ""

    return "WHERE %s" % (" AND ".join(rendered_conditions))