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2 changes: 1 addition & 1 deletion versions/3.0.1.md
Original file line number Diff line number Diff line change
Expand Up @@ -2367,7 +2367,7 @@ While composition offers model extensibility, it does not imply a hierarchy betw
To support polymorphism, the OpenAPI Specification adds the `discriminator` field.
When used, the `discriminator` will be the name of the property that decides which schema definition validates the structure of the model.
As such, the `discriminator` field MUST be a required field.
There are are two ways to define the value of a discriminator for an inheriting instance.
There are two ways to define the value of a discriminator for an inheriting instance.
- Use the schema name.
- Override the schema name by overriding the property with a new value. If a new value exists, this takes precedence over the schema name.
As such, inline schema definitions, which do not have a given id, *cannot* be used in polymorphism.
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