class_docstr: Like TestSplitHostDevice, but no device regions to extract
  
  Because MakePackedAPI/MakeUnpackedAPI still require both the
  device and host, SplitHostDevice does not modify the "target"
  attribute.
class_docstr_tok: ["Like","TestSplitHostDevice",",","but","no","device","regions","to","extract","Because","MakePackedAPI\/MakeUnpackedAPI","still","require","both","the","device","and","host",",","SplitHostDevice","does","not","modify","the","``","target","''","attribute","."]
code: def before():
      T.func_attr({"target": T.target("ext_dev", host="llvm")})
      T.evaluate(0)
  
imports: import tvm
  from tvm import te
  import tvm.testing
  from tvm.script import tir, ir
label_desc: Use image node_id 1 for calling the TestSplitHostDeviceWithoutDeviceRegion obj's underlying member method code with example usage: obj.before() without return types