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: _initial_capacity_config.rs
    path of file: ./repos/aws-sdk-rust/sdk/emrserverless/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>The initial capacity configuration per worker.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct InitialCapacityConfig {
    /// <p>The number of workers in the initial capacity configuration.</p>
    pub worker_count: i64,
    /// <p>The re
    
    pub fn build(self) -> ::std::result::Result<crate::types::InitialCapacityConfig, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::InitialCapacityConfig {
            worker_count: self.worker_count.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "worker_count",
                    "worker_count was not specified but it is required when building InitialCapacityConfig",
                )
            })?,
            worker_configuration: self.worker_configuration,
        })
    }