public int getRequiresVersionIndex() {
			return requires_version_index & 0xffff;
		}
Must be either 0 or a valid index into the constant pool.  If the value of the
item is nonzero, the constant pool entry at that index must be a {@link ConstantPoolUtf8Info}
structure representing the version of the module specified by {@code requires_index}.
@return requires_index
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/attributes/ModuleAttribute.java