Context: Jython script

Suppose I want to run a gaussian blur on an net.imglib2.img.Img but I don't know the op signature filter.gauss. Let's say that I know that the gaussian blur op is in the filter namespace but I'm unsure if its gauss or gaussian. In this scenario it would be great to have a mechanism to return all ops in a given namespace.

Current behavior:

# get op environment
from org.scijava.ops.api import OpEnvironment
ops = OpEnvironment.getEnvironment()

print(ops.descriptions("filter"))

Output:

[]

Proposed behavior:

# get op environment
from org.scijava.ops.api import OpEnvironment
ops = OpEnvironment.getEnvironment()

print(ops.descriptions("filter"))

Output:

[filter.addNoise(), filter.bilateral(), filter.convolve(), filter.gauss(), filter.hessian(), filter.ifft(), filter.max(), ...]

With this behavior I can easily find that the op signature I want in the filter namespace is filter.gauss(). I don't think we need to return all the possible input parameters for the ops as that will create an unruly list. Instead I think just returning the signature is fine. The user can get the description of the specific op for parameter information if they desire.