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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 find_label(label, label_color, label_description):
 """Find label."""

    edit = None
    for name, values in label_list.items():
        color, description = values
        if isinstance(name, tuple):
            old_name = name[0]
            new_name = name[1]
        else:
            old_name = name
            new_name = name
        if label.lower() == old_name.lower():
            edit = LabelEdit(old_name, new_name, color, description)
            break
    return edit