清单2显示，度量指标LoanId通过expression字段初始化，该字段表明在监测上下文中发现loanid值的位置。
The metric LoanId, shown in Listing 2, is initialized through the expression field, which indicates the location in the monitoring context where the value of LoanId is found.
清单2显示，度量指标LoanId通过expression字段初始化，该字段表明在监测上下文中发现loanid值的位置。
The metric LoanId, shown in Listing 2, is initialized through the expression field, which indicates the location in the monitoring context where the value of LoanId is found.
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