Module asl_count

Return False if the # of atoms doesn't match the expression given

Parameters:

• asl (string) - asl expression
• expression (string) - expression for how the count should compare (e.g. '>=5')
• fn (string) - maestro filename
• ct_index (str, int, or float (converted to int) Example: custom.asl_count.asl_count("water and atom.ele O", "==0", "mol.mae")) - Specific index of ct to be tested, otherwise all will be