# S3 method for LAS
st_bbox(obj, ...)# S3 method for LASheader
st_bbox(obj, ...)
# S3 method for LAScatalog
st_bbox(obj, ...)
# S3 method for LAScluster
st_bbox(obj, ...)
# S4 method for LAS
ext(x, ...)
# S4 method for LASheader
ext(x, ...)
# S4 method for LAScatalog
ext(x, ...)
# S4 method for LAScluster
ext(x, ...)