Ensure API documentation uses precise type specifications, proper formatting, and clear language to improve developer understanding and usability.

Key requirements:

Example of improved documentation:

FunctionDocumentation::Arguments arguments = {
    {"arr", "The array to concatenate.", {"Array(T)"}},  // Specific type
    {"max_substrings", "Optional. When `max_substrings > 0`...", {"Int64"}}  // Clear naming, backticks for technical terms
};

This ensures documentation serves as an effective reference for developers and reduces confusion about parameter types and usage.