[Optional] NOS populates value.
value has this syntax:
/$variable_name[...]
Each slash (/) represents a key level.
The final variable_name (that is, value) cannot end with a slash.
Each variable_name can appear only once.
The variable names align with the entries in the key prefix location string. The first variable_name corresponds to first entry after the bucket name. For example, this value:
/$category/$filetype/$year/$month
Corresponds to this key prefix:
US-Crimes/csv-files/2001/Dec/
Default:
'$Var1/$Var2/$Var3/$Var4/$Var5/$Var6/$Var7/$Var8/$Var9/$Var10 /$Var11/$Var12/$Var13/$Var14/$Var15/$Var16/$Var17/$Var18/$Var19/$Var20'