Pausable
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Base contract that provides a pause mechanism.

Inherits from contract Ownable.

pause() onlyOwner whenNotPaused returns (bool)
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Triggers pause mechanism on the contract. After this function is called (by the owner of the contract), any function with modifier whenNotPaused will not run.


modifier whenNotPaused()
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Prevents function from running if pause mechanism is activated.

modifier whenPaused()
"""""""""""""""""""""""""""""""""""""

Only runs if pause mechanism is activated.

unpause() onlyOwner whenPaused returns (bool)
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Deactivates the pause mechanism.