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from opendc.models.trace import Trace
from opendc.util import exceptions
from opendc.util.rest import Response
def GET(request):
"""Get this Trace."""
# Make sure required parameters are there
try:
request.check_required_parameters(path={'traceId': 'int'})
except exceptions.ParameterError as e:
return Response(400, str(e))
# Instantiate a Trace and make sure it exists
trace = Trace.from_primary_key((request.params_path['traceId'], ))
if not trace.exists():
return Response(404, '{} not found.'.format(trace))
# Return this Trace
return Response(200, 'Successfully retrieved {}.'.format(trace), trace.to_JSON())
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