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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def find_point_bin(self, chi_coords):
 """ Given a set of coordinates in the chi parameter space, identify the indices of the chi1 and chi2 bins that the point occurs in. Returns these indices. Parameters chi_coords : numpy.array The position of the point in the chi coordinates. Returns -------- chi1_bin : int Index of the chi_1 bin. chi2_bin : int Index of the chi_2 bin. """

        # Identify bin
        chi1_bin = int((chi_coords[0] - self.chi1_min) // self.bin_spacing)
        chi2_bin = int((chi_coords[1] - self.chi2_min) // self.bin_spacing)
        self.check_bin_existence(chi1_bin, chi2_bin)
        return chi1_bin, chi2_bin