assumptions.dfr_dist_series
                        Assumptions for series system distributions
component_hazard        Get the hazard function for a specific
                        component
dfr_dist_series         Series System Distribution from DFR Components
is_dfr_dist_series      Test whether an object is a dfr_dist_series
param_layout            Get the parameter layout for a system
print.dfr_dist_series   Print method for series system distributions
sample_components       Sample component lifetimes from a system
