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from typing import List
import types
import dsp

from .teleprompt import Teleprompter
from dspy.teleprompt import BootstrapFewShot

class KNNFewShot(Teleprompter):
    def __init__(self, KNN, k: int, trainset: List[dsp.Example]):
        self.KNN = KNN(k, trainset)

    def compile(self, student, *, teacher=None, trainset, valset=None):
        student_copy = student.reset_copy()

        def forward_pass(*args, **kwargs):
            knn_trainset = self.KNN(**kwargs)
            few_shot_bootstrap = BootstrapFewShot()
            compiled_program = few_shot_bootstrap.compile(student, teacher=teacher, trainset=knn_trainset, valset=valset)
            return compiled_program(**kwargs)
        
        student_copy.forward = types.MethodType(forward_pass, student_copy)
        return student_copy