to_string generic method.
to_string(object, ...)# S4 method for unknown_statement
to_string(object, ...)
# S4 method for comment
to_string(object, ...)
# S4 method for line_break
to_string(object, ...)
# S4 method for equation
to_string(object, ...)
# S4 method for ode
to_string(object, ...)
# S4 method for if_statement
to_string(object, ...)
# S4 method for compartment
to_string(object, ...)
# S4 method for compartment_property
to_string(object, ...)
# S4 method for compartment_initial_condition
to_string(object, ...)
# S4 method for mrgsolve_model
to_string(object, ...)
character value/vector
generic object
extra arguments needed for to_string conversion