How can I test for the existence of a macro in script code?

[kinook]

VBScript:

Version #1 (look for a macro of any type with the given name)

If Not vbld_AllMacros()("MACRO_NAME") Is Nothing Then
  Builder.LogMessage "MACRO_NAME exists"
Else
  Builder.LogMessage "MACRO_NAME does not exist"
End If

Version #2 (look for a temporary macro with the given name)

If Not vbld_TempMacros()("MACRO_NAME") Is Nothing Then
  Builder.LogMessage "MACRO_NAME exists"
Else
  Builder.LogMessage "MACRO_NAME does not exist"
End If