@Nullable
	@Override
	public String getMappedVariableName(@Nonnull String className, @Nonnull String methodName, @Nonnull String methodDesc,
	                                    @Nullable String name, @Nullable String desc, int index) {
		MappingKey key = getVariableKey(className, methodName, methodDesc, name, desc, index);
		return mappings.get(key);
	}
Adds all the entries in the given mappings to the current mappings.

@param mappings
		Intermediate mappings to add to the current mappings.
recaf-core/src/main/java/software/coley/recaf/services/mapping/MappingsAdapter.java