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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 add_field_value(self, field, value):
 """Add a value to a field that supports multiple values, without resetting the existing values. This should work with: labels, multiple checkbox lists, multiple select :param field: The field name :param value: The field's value :type field: str """

        super(Issue, self).update(fields={"update": {field: [{"add": value}]}})