runtimeType property
override
A Type object representing the runtime type of a record.
The runtime type of a record is defined by the record's shape,
the number of positional fields and names of named fields,
and the runtime type of each of those fields.
(The runtime type of the record does not depend on
the runtimeType getter of its fields' values,
which may have overridden Object.runtimeType.)
The Type object of a record type is only equal to another Type object
for a record type, and only if the other record type has the same shape,
and if the corresponding fields have the same types.
Implementation
Type get runtimeType;