| 123456789101112131415161718192021222324252627282930313233343536 | from typing import Optionalfrom pydantic import Field, PositiveIntfrom pydantic_settings import BaseSettingsclass PGVectoRSConfig(BaseSettings):    """    Configuration settings for PGVecto.RS (Rust-based vector extension for PostgreSQL)    """    PGVECTO_RS_HOST: Optional[str] = Field(        description="Hostname or IP address of the PostgreSQL server with PGVecto.RS extension (e.g., 'localhost')",        default=None,    )    PGVECTO_RS_PORT: Optional[PositiveInt] = Field(        description="Port number on which the PostgreSQL server with PGVecto.RS is listening (default is 5431)",        default=5431,    )    PGVECTO_RS_USER: Optional[str] = Field(        description="Username for authenticating with the PostgreSQL database using PGVecto.RS",        default=None,    )    PGVECTO_RS_PASSWORD: Optional[str] = Field(        description="Password for authenticating with the PostgreSQL database using PGVecto.RS",        default=None,    )    PGVECTO_RS_DATABASE: Optional[str] = Field(        description="Name of the PostgreSQL database with PGVecto.RS extension to connect to",        default=None,    )
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