You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Buddhism

Context:
According to Jan Nattier, the term Mahāyāna "Great Vehicle" was originally even an honorary synonym for Bodhisattvayāna "Bodhisattva Vehicle." The Aṣṭasāhasrikā Prajñāpāramitā Sūtra, an early and important Mahayana text, contains a simple and brief definition for the term bodhisattva: "Because he has enlightenment as his aim, a bodhisattva-mahāsattva is so called."

Question:
The Astasahasrika Prajnaparamita Sutra is an important text of what type?

Mahayana