| 1 | # Mapped Parameters
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| 2 |
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| 3 | Mapped parameters are special parameters that aren't gathered from
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| 4 | users but supplied, like secrets, by the Atomist runtime.
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| 5 |
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| 6 | Like normal parameters, they are specified using decorators and
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| 7 | injected into a fresh instance before the `handle` function is
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| 8 | called.
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| 9 |
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| 10 | The following example provides the current GitHub owner name:
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| 11 |
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| 12 | ```typescript
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| 13 | @MappedParameter(MappedParameters.GITHUB_OWNER)
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| 14 | public targetOwner: string;
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| 15 | ```
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