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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 _parse_integrator(int_method):
 """parse the integrator method to pass to C"""

    #Pick integrator
    if int_method.lower() == 'rk4_c':
        int_method_c= 1
    elif int_method.lower() == 'rk6_c':
        int_method_c= 2
    elif int_method.lower() == 'symplec4_c':
        int_method_c= 3
    elif int_method.lower() == 'symplec6_c':
        int_method_c= 4
    elif int_method.lower() == 'dopr54_c':
        int_method_c= 5
    elif int_method.lower() == 'dop853_c':
        int_method_c= 6
    else:
        int_method_c= 0
    return int_method_c