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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 step_undefined_step_snippets_should_not_exist_for_table(context):
 """ Checks if undefined-step snippets are not provided. EXAMPLE: Then undefined-step snippets should not exist for: | Step | | When an known step is used | | Then another known step is used | """

    assert context.table, "REQUIRES: table"
    for row in context.table.rows:
        step = row["Step"]
        step_undefined_step_snippet_should_not_exist_for(context, step)