This function will thoroughly check the provided Attribute in order to
see if it is valid or not. If the provided Attribute object (of type
CDM_Attribute) is valid, "1" will be return. In the case where the
Attribute is not valid (or malformed), "0" is returned and an error
message is left at the current active interpeter (CDM_Interp).
Return Value:
This function will return true (1) if the provided Attribute object is
valid. Else, false (0) will be returned and an error message describing
the error will be left at the current active interpeter (CDM_Interp).