* @param filters {Object} A dictionary of parameters to filter the result.
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* @param filters {Object} A dictionary of parameters to filter the result. The filtering keys are:
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* - applicationId: the ID of a application (see /usr/share/accounts/applications/ or ~/.local/share/accounts/applications/ for a list of the available applications)
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* @param callback {Function(List of AccountService objects)} Callback that receives the result or null.
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* The result is a dictionary with the following keys:
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* - displayName: the display name for the corresponding provider