src/anthropic/lib/bedrock/_client.py [177:200]:
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        data = request.read().decode()

        headers = get_auth_headers(
            method=request.method,
            url=str(request.url),
            headers=request.headers,
            aws_access_key=self.aws_access_key,
            aws_secret_key=self.aws_secret_key,
            aws_session_token=self.aws_session_token,
            region=self.aws_region or "us-east-1",
            profile=self.aws_profile,
            data=data,
        )
        request.headers.update(headers)

    def copy(
        self,
        *,
        aws_secret_key: str | None = None,
        aws_access_key: str | None = None,
        aws_region: str | None = None,
        aws_session_token: str | None = None,
        base_url: str | httpx.URL | None = None,
        timeout: float | Timeout | None | NotGiven = NOT_GIVEN,
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src/anthropic/lib/bedrock/_client.py [321:344]:
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        data = request.read().decode()

        headers = get_auth_headers(
            method=request.method,
            url=str(request.url),
            headers=request.headers,
            aws_access_key=self.aws_access_key,
            aws_secret_key=self.aws_secret_key,
            aws_session_token=self.aws_session_token,
            region=self.aws_region or "us-east-1",
            profile=self.aws_profile,
            data=data,
        )
        request.headers.update(headers)

    def copy(
        self,
        *,
        aws_secret_key: str | None = None,
        aws_access_key: str | None = None,
        aws_region: str | None = None,
        aws_session_token: str | None = None,
        base_url: str | httpx.URL | None = None,
        timeout: float | Timeout | None | NotGiven = NOT_GIVEN,
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