API:Errors and warnings

Warnings
Warnings are grouped by the name of the module that caused them. Multiple warnings from the same module are separated by a newline. In the legacy error formatting mode (see below), which is the default, warnings are output in the following format: ( will be replaced by   when   is used.)

When a non-legacy error formatting option is used, warnings are output in the same format as errors. E.g. with  the format will be: ( will be replaced with   when    is used.)

Warning messages
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Additional notes
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 * All error and warning code>. the field