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from bokeh.plotting import figure, show
from bokeh.models import ColumnDataSource
from bokeh.models import HoverTool

data = ColumnDataSource(data=dict(x0=[1, 2, 3], y0=[1, 2, 3], x1=[1.2, 2.4, 3.1],
          y1=[1.2, 2.5, 3.7], text=["a", "b", "c"]))

hover = HoverTool(tooltips=[
    ("desc", "@text"),
])

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from ortools.constraint_solver import pywrapcp


def SolutionCollector__len__(self):
    return self.SolutionCount()

def SolutionCollector__getitem__(self, index):
    if index < len(self):
        return self.Solution(index)
    else:

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