<human>:  Write me a Python function to merge objects without overwriting them.
<bot>:

# Enter the target
target = {"a": 1, "b": 2}

# Enter the source
source = {"a": 3, "b": 4}

# Calling the function
print((merge_without_overwrite(target, source)))

#Example Output
# None

#Remember to inspect code for bugs.