@@ -187,11 +187,14 @@ function SymbolicIndexingInterface.is_variable(sys::AbstractSystem, sym)
187187 if unwrap (sym) isa Int # [x, 1] coerces 1 to a Num
188188 return unwrap (sym) in 1 : length (unknown_states (sys))
189189 end
190- return any (isequal (sym), unknown_states (sys)) || hasname (sym) && is_variable (sys, getname (sym))
190+ return any (isequal (sym), unknown_states (sys)) ||
191+ hasname (sym) && is_variable (sys, getname (sym))
191192end
192193
193194function SymbolicIndexingInterface. is_variable (sys:: AbstractSystem , sym:: Symbol )
194- return any (isequal (sym), getname .(unknown_states (sys))) || count (' ₊' , string (sym)) == 1 && count (isequal (sym), Symbol .(sys. name, :₊ , getname .(unknown_states (sys)))) == 1
195+ return any (isequal (sym), getname .(unknown_states (sys))) ||
196+ count (' ₊' , string (sym)) == 1 &&
197+ count (isequal (sym), Symbol .(sys. name, :₊ , getname .(unknown_states (sys)))) == 1
195198end
196199
197200function SymbolicIndexingInterface. variable_index (sys:: AbstractSystem , sym)
@@ -224,12 +227,14 @@ function SymbolicIndexingInterface.is_parameter(sys::AbstractSystem, sym)
224227 return unwrap (sym) in 1 : length (parameters (sys))
225228 end
226229
227- return any (isequal (sym), parameters (sys)) || hasname (sym) && is_parameter (sys, getname (sym))
230+ return any (isequal (sym), parameters (sys)) ||
231+ hasname (sym) && is_parameter (sys, getname (sym))
228232end
229233
230234function SymbolicIndexingInterface. is_parameter (sys:: AbstractSystem , sym:: Symbol )
231235 return any (isequal (sym), getname .(parameters (sys))) ||
232- count (' ₊' , string (sym)) == 1 && count (isequal (sym), Symbol .(sys. name, :₊ , getname .(parameters (sys)))) == 1
236+ count (' ₊' , string (sym)) == 1 &&
237+ count (isequal (sym), Symbol .(sys. name, :₊ , getname .(parameters (sys)))) == 1
233238end
234239
235240function SymbolicIndexingInterface. parameter_index (sys:: AbstractSystem , sym)
@@ -270,7 +275,8 @@ function SymbolicIndexingInterface.independent_variable_symbols(sys::AbstractSys
270275end
271276
272277function SymbolicIndexingInterface. is_observed (sys:: AbstractSystem , sym)
273- return ! is_variable (sys, sym) && ! is_parameter (sys, sym) && ! is_independent_variable (sys, sym) && symbolic_type (sym) != NotSymbolic ()
278+ return ! is_variable (sys, sym) && ! is_parameter (sys, sym) &&
279+ ! is_independent_variable (sys, sym) && symbolic_type (sym) != NotSymbolic ()
274280end
275281
276282SymbolicIndexingInterface. is_time_dependent (:: AbstractTimeDependentSystem ) = true
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