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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 frac_vol_floc_initial(ConcAluminum, ConcClay, coag, material):
 """Return the volume fraction of flocs initially present, accounting for both suspended particles and coagulant precipitates. :param ConcAluminum: Concentration of aluminum in solution :type ConcAluminum: float :param ConcClay: Concentration of particle in suspension :type ConcClay: float :param coag: Type of coagulant in solution :type coag: float :param material: Type of particles in suspension, e.g. floc_model.Clay :type material: floc_model.Material :return: Volume fraction of particles initially present :rtype: float """

    return ((conc_precipitate(ConcAluminum, coag).magnitude/coag.PrecipDensity)
            + (ConcClay / material.Density))