Conventions Used in This Book

Items appearing in this book are sometimes given a special appearance to set them apart from the regular text. Here’s how they look:

Italic

Used for citations of books and articles, commands, email addresses, and URLs

Constant width

Used for literals, constant values, code listings, and XML markup

Constant-width bold

Used to indicate user input

Constant-width italic

Used for replaceable parameter and variable names

Note

This icon represents a tip, suggestion, or general note.

Warning

This icon represents a warning or caution.

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