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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 field2write_only(self, field, **kwargs):
 """Return the dictionary of OpenAPI field attributes for a load_only field. :param Field field: A marshmallow field. :rtype: dict """

        attributes = {}
        if field.load_only and self.openapi_version.major >= 3:
            attributes["writeOnly"] = True
        return attributes