Test whether an object is a bundle
Value
TRUE if x is of class bundle, otherwise FALSE.
Examples
sl <- streamline(points = cbind(X = 1:5, Y = 1:5, Z = 1:5))
b <- bundle(streamlines = list(sl))
is_bundle(b) # TRUE
#> [1] TRUE
is_bundle(sl) # FALSE
#> [1] FALSE