```ruby
# Copyright 2014 - 2016 Ryan Moore
# Contact: moorer@udel.edu
#
# This file is part of parse_fasta.
#
# parse_fasta is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# parse_fasta is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with parse_fasta.  If not, see <http://www.gnu.org/licenses/>.

require "parse_fasta/version"
require "parse_fasta/record"
require "parse_fasta/seq_file"
require "parse_fasta/error/data_format_error"

module ParseFasta
end
```

Raise error with bad fastA seq
user
```ruby
# Copyright 2014 - 2016 Ryan Moore
# Contact: moorer@udel.edu
#
# This file is part of parse_fasta.
#
# parse_fasta is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# parse_fasta is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with parse_fasta.  If not, see <http://www.gnu.org/licenses/>.

require "parse_fasta/version"
require "parse_fasta/record"
require "parse_fasta/seq_file"
require "parse_fasta/error/data_format_error"
require "parse_fasta/error/sequence_format_error"

module ParseFasta
end
```
assistant