A captured backtrace of a specific script language. [ScriptBacktrace] holds an already captured backtrace of a specific script language, such as GDScript or C#, which are captured using [method Engine.capture_script_backtraces]. See [member ProjectSettings.debug/settings/gdscript/always_track_call_stacks] and [member ProjectSettings.debug/settings/gdscript/always_track_local_variables] for ways of controlling the contents of this class. Converts the backtrace to a [String], where the entire string will be indented by [param indent_all] number of spaces, and the individual stack frames will be additionally indented by [param indent_frames] number of spaces. [b]Note:[/b] Calling [method Object.to_string] on a [ScriptBacktrace] will produce the same output as calling [method format] with all parameters left at their default values. Returns the number of stack frames in the backtrace. Returns the file name of the call site represented by the stack frame at the specified index. Returns the name of the function called at the stack frame at the specified index. Returns the line number of the call site represented by the stack frame at the specified index. Returns the number of global variables (e.g. autoload singletons) in the backtrace. [b]Note:[/b] This will be non-zero only if the [code]include_variables[/code] parameter was [code]true[/code] when capturing the backtrace with [method Engine.capture_script_backtraces]. Returns the name of the global variable at the specified index. Returns the value of the global variable at the specified index. [b]Warning:[/b] With GDScript backtraces, the returned [Variant] will be the variable's actual value, including any object references. This means that storing the returned [Variant] will prevent any such object from being deallocated, so it's generally recommended not to do so. Returns the name of the script language that this backtrace was captured from. Returns the number of local variables in the stack frame at the specified index. [b]Note:[/b] This will be non-zero only if the [code]include_variables[/code] parameter was [code]true[/code] when capturing the backtrace with [method Engine.capture_script_backtraces]. Returns the name of the local variable at the specified [param variable_index] in the stack frame at the specified [param frame_index]. Returns the value of the local variable at the specified [param variable_index] in the stack frame at the specified [param frame_index]. [b]Warning:[/b] With GDScript backtraces, the returned [Variant] will be the variable's actual value, including any object references. This means that storing the returned [Variant] will prevent any such object from being deallocated, so it's generally recommended not to do so. Returns the number of member variables in the stack frame at the specified index. [b]Note:[/b] This will be non-zero only if the [code]include_variables[/code] parameter was [code]true[/code] when capturing the backtrace with [method Engine.capture_script_backtraces]. Returns the name of the member variable at the specified [param variable_index] in the stack frame at the specified [param frame_index]. Returns the value of the member variable at the specified [param variable_index] in the stack frame at the specified [param frame_index]. [b]Warning:[/b] With GDScript backtraces, the returned [Variant] will be the variable's actual value, including any object references. This means that storing the returned [Variant] will prevent any such object from being deallocated, so it's generally recommended not to do so. Returns [code]true[/code] if the backtrace has no stack frames.