You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: _step_adjustment.rs
    path of file: ./repos/aws-sdk-rust/sdk/applicationautoscaling/src/types
    
    the code of the file until where you have to start completion: // Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/// <p>Represents a step adjustment for a <a href="https://docs.aws.amazon.com/autoscaling/application/APIReference/API_StepScalingPolicyConfiguration.html">StepScalingPolicyConfiguration</a>. Describes an adjustment based on the difference between the value of the aggregated CloudWatch metric and the breach threshold that you've defined for the alarm.</p>
/// <p>For the following examples, suppose that you have an alarm with a breach threshold of 50:</p>
/// <ul>
/// <li>
/// <p>To initiate the adjustment when the metric is greater than or equal to 50 and les
    
    pub fn build(self) -> ::std::result::Result<crate::types::StepAdjustment, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::StepAdjustment {
            metric_interval_lower_bound: self.metric_interval_lower_bound,
            metric_interval_upper_bound: self.metric_interval_upper_bound,
            scaling_adjustment: self.scaling_adjustment.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "scaling_adjustment",
                    "scaling_adjustment was not specified but it is required when building StepAdjustment",
                )
            })?,
        })
    }