<commit_before>
.. code-block:: python

# Number of students in each course section
Section.aggr(Enroll, n: count())
# Average grade in each course
Course.aggr(Grade * LetterGrade, avg_grade: avg(points))

<commit_msg>Fix aggr syntax.<commit_after>
.. code-block:: python

  # Number of students in each course section
  Section.aggr(Enroll, n="count(*)")
  # Average grade in each course
  Course.aggr(Grade * LetterGrade, avg_grade: avg(points))

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{'dir': 'git-commits-cleaned', 'id': '2474747', 'n_tokens_mistral': 150, 'n_tokens_neox': 143, 'n_words': 45}