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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 execution_environment():
 """A convenient bundling of the current execution context"""

    context = {}
    context['conf'] = config()
    if relation_id():
        context['reltype'] = relation_type()
        context['relid'] = relation_id()
        context['rel'] = relation_get()
    context['unit'] = local_unit()
    context['rels'] = relations()
    context['env'] = os.environ
    return context