<commit_before>class Leaf(object):
    '''Create leaf.'''
    def __init__(self, left=None, key=None, value=None, right=None):
        self.left = left
        self.key = key
        self.value = value
        self.right = right


class Tree(object):
    '''Create tree'''
    def __init__(self):
        self.root = None<commit_msg>first case of insert.<commit_after>class Leaf(object):
    '''Create leaf.'''
    def __init__(self, left=None, value=None, right=None):
        self.left = left
        self.value = value
        self.right = right


class Tree(object):
    '''Create tree'''
    def __init__(self, root=None):
        self.root = root

    def insert(self, value):
        if self.root is None:
            self.root = Leaf(value=value)
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{'dir': 'git-commits-cleaned', 'id': '2660795', 'n_tokens_mistral': 233, 'n_tokens_neox': 226, 'n_words': 61}