You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: and.m
    path of file: ./repos/chebfun/@chebop
    
    the code of the file until where you have to start completion: function N = and(N,bc)
%&   Set boundary conditions for a chebop.
%   N = N & BC sets the boundary conditions of N to those described in BC. BC
%   may be a structure with fields 'left', 'right', and other', taking
%   values as described below; otherwise both boundaries are assigned the
%   same conditions. Either way, ALL previous boundary conditions in N are

    
function N = and(N,bc)
%&   Set boundary conditions for a chebop.
%   N = N & BC sets the boundary conditions of N to those described in BC. BC
%   may be a structure with fields 'left', 'right', and other', taking
%   values as described below; otherwise both boundaries are assigned the
%   same conditions. Either way, ALL previous boundary conditions in N are
%   replaced.
%
%   The 'left', 'right', and 'other' fields, or the entire BC, may be single
%   item or a cell array for multiple conditions. Each item imposes a
%   condition on the solution u depend