Arguments

name  (string) the name of the PropertySet to be deleted (can specify the "name" or the "label" of a PropertySet)

(optional)
specifies the NameSpace to where the PropertySet resides (each category has an associated NameSpace)
categoryId  BIM property category ID, can be omitted (bcBimCategoryUser is used then); see Category Constants
---or---
categoryName  BIM category name as string, can be omitted (bcBimCategoryUser is used then), see Category Constants
if omitted, the all NameSpaces are automatically scanned to find the PropertySet "name"

Return

T or NIL, indicating whether the PropertySet exists

Example

(bim:has-propertyset "TestSet")  NIL
(bim:create-propertyset "TestSet" "---test---" T T)  T
(bim:has-propertyset "TestSet")  T

Remarks

the PropertySet name/label is case-insensitive;
if the NameSpace (as indirectly specified by categoryId resp. categoryName) does not exist, NIL is returned;