An MCP resource template (resources/templates/list), RFC 6570 URI template.
resources/templates/list
@type t() :: %Noizu.MCP.Types.ResourceTemplate{ annotations: map() | nil, description: String.t() | nil, icons: [map()] | nil, meta: map() | nil, mime_type: String.t() | nil, name: String.t() | nil, title: String.t() | nil, uri_template: String.t() }
@spec from_map(map()) :: t()
@spec to_map(t()) :: map()