Install pip install brdocs-validation Supported docs and its formats Supports Description Format Format's support CNPJ 12.345.678/9012-34 OR Without special chars CPF 123.456.789-01 OR Without special chars CNH Only numbers Length: 11 NIS/PIS/PASEP/NIT Use NIS type for PIS, PASEP, NIT 123.45678.90-1 OR Only numbers CNS Cartão Nacional de Saúde Only numbers RENAVAM Only numbers Length: 9, 10 & 11 TE Título de eleitor Only numbers CERT Certidão de casamento, nascimento e óbito Only numbers SEI Número do Processo SEI 12345-67890123/4567-89 OR without special chars Usage from br_docs import CNPJ, CPF, CNH, NIS, CNS, RENAVAM, TE, CERT, SEI from pydantic import BaseModel class User(BaseModel): cpf: CPF cnpj: CNPJ cnh: CNH nis: NIS cns: CNS renavam: RENAVAM te: TE cert: CERT sei: SEI