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# defined_modules(+File, -Modules)

Retrieve the modules defined by a file.

File
  Atom or string
Modules
  List of atoms

## Description

It is often necessary to know what modules a file has defined in order to operate on module specific data. This predicate can be used to return the modules defined by a file which has been compiled with the instrument compiler.

### Fail Conditions

no

### Resatisfiable

no

## See Also

get_callsite_data / 2, file_callsites / 3, instrument / 2, instrument / 3, library(instrument), set_callsite_data / 2, struct(itemplate), defined_modules / 2