Skeleton for final data validation and xref

dto/client_data/FromPassport.py

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+from datetime import date
+from typing import Literal
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class FromPassport(BaseModel):
+    """
+    Fields which can be extracted from description.txt
+    """
+    model_config = ConfigDict(validate_assignment=True, str_strip_whitespace=True)
+    
+    country: str = Field(..., min_length=3, max_length=3)  # ISO 3166-1 alpha-3
+    passport_number: str = Field(..., min_length=9, max_length=9, regex=r"^[A-Z0-9]{9}$")
+
+    surname: str = Field(..., min_length=1)
+    given_names: str = Field(..., min_length=1)
+
+    birth_date: date
+    citizenship: str = Field(..., min_length=2)
+    sex: Literal["M", "F"]
+
+    issue_date: date
+    expiry_date: date
+
+    signature_present: bool
+
+    machine_readable_zone: str = Field(..., min_length=44)