https://quantum.cloud.ibm.com/docs/en/api/qiskit/1.3/qiskit.result.CorrelatedReadoutMitigator
CorrelatedReadoutMitigator (v1.3) | IBM Quantum Documentation
API reference for qiskit.result.CorrelatedReadoutMitigator in qiskit v1.3
ibm quantumdocumentation