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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 context(names):
 """Show JSON-LD context for repository objects."""

    import json

    contexts = [_context_json(name) for name in set(names)]
    if contexts:
        click.echo(
            json.dumps(
                contexts[0] if len(contexts) == 1 else contexts,
                indent=2,
            )
        )