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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 resolve_schema_in_request_body(self, request_body):
 """Function to resolve a schema in a requestBody object - modifies then response dict to convert Marshmallow Schema object or class into dict """

        content = request_body["content"]
        for content_type in content:
            schema = content[content_type]["schema"]
            content[content_type]["schema"] = self.openapi.resolve_schema_dict(schema)