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: _can_dbc_definition.rs
    path of file: ./repos/aws-sdk-rust/sdk/iotfleetwise/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>Configurations used to create a decoder manifest.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct CanDbcDefinition {
    /// <p>Contains information about a network interface.</p>
    pub network_interface: ::std::string::String,
    /// <p>A list of DBC files. You can upload only one DBC file for each network interface and specify up to five (inclusive) files in the l
    
    pub fn build(self) -> ::std::result::Result<crate::types::CanDbcDefinition, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::CanDbcDefinition {
            network_interface: self.network_interface.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "network_interface",
                    "network_interface was not specified but it is required when building CanDbcDefinition",
                )
            })?,
            can_dbc_files: self.can_dbc_files.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "can_dbc_files",
                    "can_dbc_files was not specified but it is required when building CanDbcDefinition",
                )
            })?,
            signals_map: self.signals_map,
        })
    }