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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def make_label(id_, lineno):
 """ Creates a label entry. Returns None on error. """

    entry = SYMBOL_TABLE.declare_label(id_, lineno)
    if entry:
        gl.DATA_LABELS[id_] = gl.DATA_PTR_CURRENT  # This label points to the current DATA block index
    return entry