DeclarePackage

DeclarePackage["context`",{"name₁","name₂",…}]

declares that Needs["context`"] should automatically be executed if a symbol with any of the specified names is ever used.

Details

You can use DeclarePackage to tell the Wolfram Language automatically to load a particular package when any of the symbols defined in it are used.
DeclarePackage creates symbols with the attribute Stub in the specified context.
DeclarePackage prepends context` to $ContextPath.

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Declare that the Benchmarking package should be loaded when the Benchmark symbol is used:

The Benchmark symbol is created with the Stub attribute:

Use of the symbol implies reading the corresponding package automatically:

The named context is prepended to the search path:

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